On This Day in the Spanish Civil War: 12 October 1936, including the Siege of Sigüenza

The frontline in 1936-1937, via Las Merindades en la Memoria

Loma de Montija, Burgos

By October 1936, the northern peaks of the province of Burgos had transformed into a critical theatre of operations in the Spanish Civil War. As autumn set in, the Republican forces launched a series of determined local offensives designed to puncture the Nationalist defensive perimeter guarding access to the Castilian plains. Over three bloody days between 10 and 12 October 1936, a fluid sequence of attacks, counter-attacks, and desperate high-altitude skirmishes erupted across the Loma de Montija, Espinosa de los Monteros, and La Lora sectors.

The attacking Republican forces comprised approximately 3,500 to 5,000 combatants. Because this front spanned the border of Cantabria and Burgos, the force was made up of the Popular Militias of Santander, reinforced by Basque volunteers and unified left-wing political battalions (UGT, CNT, and communists like the young Felipe Matarranz). They were eager but suffered from a lack of heavy artillery and centralised communication. The Republican command initiated operations on 10 October by targeting the Nationalist lines across the mountainous terrain of the Loma de Montija / Noceco–Espinosa subsector. This assault stood out as one of the most sharply defined Republican operations in Burgos that month.

However, the initial breakthrough quickly encountered a ferocious Nationalist counter-offensive. The defending forces had 2,000 to 3,000 men embedded in fortified mountain positions, including the First Centuria Catalana Virgen de Montserrat, a paramilitary Falangist unit composed of approximately 118 volunteers who had fled Republican Catalonia to join the Nationalist forces in Burgos, and they launched an aggressive counter-assault that successfully drove back the Republican columns and seized the strategic village of Montecillo.

Though checked at Montecillo, the Republican army widened its operational scope the following day. On 11 October, Republican columns stationed in the Valderredible basin unleashed a synchronised wave of attacks striking toward the broader Nationalist strongholds of La Lora, Soncillo, Villarcayo, and Espinosa. This pressure intensified over 11–12 October along the La Lora / Sargentes de Lora axis. The high rocky plains of La Lora became an artillery-scarred landscape as Republican forces tried to force a permanent breach into the Burgos sector. The Republican vanguard crashed directly into the defences at Sargentes de Lora. After a bitter engagement, the Nationalist units successfully repulsed the assault. Seizing the momentum, the Nationalists counter-attacked immediately, driving the Republican lines backward and successfully advancing to occupy the adjacent hamlet of Lorilla.

By 12 October, the energy of the Republican autumn offensive began to wane under the strain of heavy casualties and entrenched resistance. The final echoes of the push concentrated against the northern Burgos line near Soncillo / Valdebezana, where Republican units threw themselves against the heavily fortified approaches protecting the town. The Nationalist defensive web held firm. Utilising superior coordination and key high-ground positions, the Nationalist forces successfully contained the wider series of attacks that had begun on 11 October.

Small agrarian hamlets like Noceco, Montecillo, and Lorilla were utterly transformed. Because of their stone architecture, centuries-old houses were seized by both armies to be used as machine-gun nests, bunkers, and command posts. As Republican forces shelled the approaches to Soncillo and Villarcayo, hundreds of local peasants fled south toward the city of Burgos to escape the crossfire. Conversely, left-leaning families or those with relatives in the unions fled north into the Republican-controlled valleys of Cantabria. October was also a critical month for the local agricultural cycle (harvesting and preparing livestock for the harsh Castilian winter). The fighting completely disrupted this. Nationalist authorities systematically requisitioned crops, cattle, and horses from the villages of the Loma de Montija to feed the frontline troops, leaving the remaining elderly and female populations facing severe food shortages.

In the wake of the fluid front lines, civilians faced immense danger from ideological purging. When the Centuria Catalana or Falangists secured villages like Montecillo or advanced into Lorilla, local populations were subjected to aggressive screenings. Anyone suspected of helping the advancing Republican milicianos was arrested, or in many cases, subjected to immediate execution.

The three-day battle across the northern mountain passes of Burgos highlighted the tactical realities that would plague the Northern Front for the next year. While Republican volunteer battalions and figures like Matarranz demonstrated immense local courage and a capacity for sudden territorial advances, they lacked the heavy artillery and unified coordination necessary to turn small tactical breakthroughs into a grand strategic victory. For the Nationalist forces, the deployment of ideological units like the Centuria Catalana proved highly effective at sealing breaches and launching devastating counter-strokes. Following the containment of the Republican push at Soncillo on 12 October, the Burgos front settled back into a frozen war of attrition, a deadly stalemate high in the mountains that would not be broken until the final Nationalist offensive of 1937.

Republicans at the frontline, via Las Merindades en la Memoria

Monte de Estépar, Burgos

On 12 October 1936, the administrative and extrajudicial mechanisms of the Nationalist White Terror intersected in the province of Burgos. Early that morning, 25 political prisoners were removed from the Burgos Central Prison and executed at the nearby mass burial site in the hills of Monte de Estépar. This operation marked the final major documented saca of the devastating October sequence, solidifying Estépar’s role as the primary clandestine execution arena for the Nationalist wartime capital.

During the autumn of 1936, the Burgos Central Prison was severely overcrowded, packed with left-wing politicians, union workers, teachers, and anyone suspected of passive resistance to the military coup. To clear space and systematically purge the rearguard, the military command coordinated with right-wing Falangist and Carlist death squads. The removal of the 25 prisoners on 12 October followed a meticulous, sinister bureaucratic protocol designed to provide plausible deniability. In the prison’s official ledger books, administrators explicitly marked these 25 men as having been formally released (puestos en libertad). The moment the prisoners stepped outside the central prison gates clutching their release papers, they were physically seized by armed Falangist squads waiting in the courtyard. They were loaded onto civilian trucks under the guise of an administrative transfer to another facility, only to be driven directly southwest toward the railway towns.

The destination for the convoy was the hills of Monte de Estépar, situated roughly 20km outside the city of Burgos. The site was chosen because its isolated geography and deep clay soil allowed for rapid, unseen mass burials. Upon arrival at the hills, the 25 men were lined up along pre-dug trenches and shot. Ballistic evidence recovered from the site indicates the use of standard military Mauser rifles, confirming that regular army elements or structured paramilitaries carried out the executions. This specific execution concluded a relentless wave of clearances. Between 2 August and 12 October 1936, prison records document 16 distinct sacas leaving the Burgos Prison for the common trenches of Estépar. Just days prior, on 8–9 October, a similar saca of 24 prisoners had cleared out prominent local cultural figures, including the celebrated avant-garde classical composer Antonio José Martínez Palacios.

Guillena, Seville, Andalucía

The town of Guillena experienced some of the most notorious manifestations of weaponised, gender-based terror of the entire war. On 12 October 1936, deliberately chosen to coincide with the Nationalist celebrations for the Día de la Raza, occupying authorities rounded up nineteen local women. These women, aged 24 to 70, had committed no military crimes; they were targeted purely as proxies because their husbands, fathers, or sons were left-wing unionists who had fled to the front or hid in the mountains. In a calculated ritual of public degradation, the 19 women of Guillena had their heads forcibly shaved, were poisoned with castor oil, and were paraded through the streets to the local church to attend Mass under armed guard. While two were eventually spared, the remaining seventeen, historically remembered as Las 17 Rosas de Guillena, would become one of November 1936’s biggest stories.

Deifontes, Granada, Andalucía

In mid-October 1936, the focus of the war in southern Spain shifted to the rugged mountains north of Granada. Between 12 and 20 October 1936, Republican loyalist forces launched a major tactical offensive along the Deifontes–Calicasas sector. Designed to sever Nationalist communications, capture strategic transport links, and threaten the rebel hold on Granada city itself, the operation resulted in brutal mountain fighting that initially forced a Nationalist retreat before settling into a stubborn stalemate.

By October 1936, the province of Granada was deeply fractured. Nationalist rebel forces held Granada city, but they were largely encircled by Republican territory. The primary rebel supply line and connection to the north ran through a narrow, precarious corridor cutting through the rugged terrain of the Sierra Arana. The Republican high command targeted two vital tactical nodes just 15km north of Granada: the Calicasas railway station and the towering high-ground position of Cuesta de las Cabezas. By capturing these heights and the railway line running through the Guadalquivir-Guadalmedina basin, the Republic aimed to choke off the Nationalist garrison in Granada, rendering the city indefensible.

On 12 October 1936, Republican infantry columns, supported by local anti-fascist militias and light artillery elements, launched a synchronised surprise assault across the valley floor. The Assault on Cuesta de las Cabezas: Republican troops pushed rapidly up the steep, rocky slopes of the Cuesta de las Cabezas. Despite pre-prepared rebel trenches, the sheer momentum of the Republican advance overwhelmed the defenders. Simultaneously, a flanking column advanced along the railway tracks, storming the Calicasas railway station. Caught off guard by the scale of the offensive, Nationalist frontline commanders ordered an immediate tactical retreat, abandoning their forward bunkers and falling back to secondary defensive ridges closer to the capital.

Republicans in the Deifontes region in October 1936, via Ahora, Biblioteca de Nacional España

The initial triumph of 12 October quickly ground to a halt as the reality of mountain warfare set in. Over the next seven days, the character of the battle transformed from a dynamic breakthrough into a gruelling war of positions. Recovering from the initial shock, Nationalist forces brought up reinforcements from the Granada garrison, utilising superior artillery positions on the higher mountain ridges to shell the newly captured Republican lines at the station. Between 13 and 20 October, the landscape between Deifontes and Calicasas became a continuous grid of minor skirmishes. Both sides launched small-scale night raids and artillery duels over individual rocky outposts and olive groves.

Lacking the heavy weaponry, armour, and centralised coordination needed to exploit their initial success, the Republican offensive exhausted its momentum. By 20 October, the lines locked firmly into place. While the Republic had successfully pushed the frontline forward and forced a localised Nationalist retreat, the operation concluded without a significant, permanent territorial breakthrough. The October fighting in the Deifontes–Calicasas sector perfectly mirrored the wider tragedy of the early war in Andalucia. It proved that while Republican militias possessed immense bravery and the tactical capability to execute localised breakthroughs, they lacked the logistical depth to turn a successful assault into a decisive campaign. The front lines established by the end of this October week would remain largely unchanged for the remainder of the war, locking the northern gateway to Granada in a permanent, bloody stalemate until 1939.

State of the area in the town after the constant attacks

Sigüenza, Guadalajara

Over forty-eight desperate hours in mid-October 1936, the brutal siege of the Cathedral of Santa María de Sigüenza came close to its bloody climax. Located in the northern province of Guadalajara, the fortress-like medieval cathedral had become a final, claustrophobic pocket of Republican resistance behind rapidly advancing Nationalist lines. Faced with structural collapse under heavy artillery fire, starvation, and a lack of ammunition, the besieged Republican militia forces split between those willing to risk everything on a desperate midnight breakout and those left behind to face absolute encirclement.

By October 1936, the strategic town of Sigüenza was completely surrounded by General Emilio Mola’s Nationalist forces advancing from the north toward Madrid. Refusing to surrender, a garrison of roughly 800 Republican defenders, consisting of CNT anarchists, UGT socialists, and communist militia columns, alongside scores of civilian families, retreated inside the town’s massive 12th-century cathedral. With its thick stone walls and imposing fortress towers, the cathedral was structurally ideal for a siege. However, by the second week of October, the position had become a tomb. Nationalist artillery batteries placed on the surrounding heights systematically pulverised the gothic roof, water supplies ran completely dry, and the stench of unburied corpses filled the nave.

Realising that no Republican relief column from Madrid would arrive in time to lift the siege, the leadership of the defence decided to split the garrison. On the night of 10 October 1936, a vanguard of approximately 150 battle-hardened defenders launched a daring, high-stakes breakout under the cover of total darkness. Slipping through a breach in the cathedral perimeter, the 150 militia members stealthily bypassed the Nationalist forward trenches and sentries encircling the plaza. Utilising their intimate knowledge of the rugged local terrain, this contingent successfully cut through the rebel encirclement, marching through the freezing night toward the distant Republican lines in the Guadalajara mountains. The escape, however, was only a partial success. The noise of the breakout quickly alerted the Nationalist command, who instantly sealed the perimeter. Around 500 to 600 remaining defenders, many of them wounded, exhausted, or civilian non-combatants, remained trapped inside the smoke-filled ruins of the cathedral.

Two days later, on 12 October 1936, the conditions inside the sanctuary crossed the threshold of human endurance. With Nationalist infantry beginning to breach the outer chapels, the remaining leadership attempted to replicate the success of the October 10 escape. Driven by sheer desperation, the defenders organised two separate, back-to-back breakout attempts over the course of the day. Unlike the midnight run two nights prior, the Nationalist forces were fully prepared. Machine-gun nests covering the cathedral exits opened fire the moment the militia members rushed into the open plazas. Both breakout attempts failed catastrophically. Dozens of Republican volunteers were cut down on the steps of the cathedral, forcing the survivors to retreat back into the pitch-black, battered interior of the church.

Almudévar–Tardienta, Huesca, Aragon

Over the first two weeks of October 1936, the strategic focal point of the Aragon Front locked onto the transport corridors connecting the rebel strongholds of Zaragoza and Huesca. While Republican anarchist and socialist militia columns successfully tightened a suffocating noose around Huesca city, the Nationalist command executed a swift, brutal counter-stroke to the south. Between 1 and 12 October 1936, this dual dynamic, a grinding, static siege to the north and a rapid, highly fortified armoured push along the Almudévar–Tardienta road sector, defined the territorial boundaries of the north-eastern front for the next two years. The siege line wrapped tightly around the city in a 46km crescent, one one side approximately 14,000 – 17,000 Republican militia in Huesca province. The vast majority were volunteers from the anarcho-syndicalist CNT-FAI (such as the Ascaso Column) alongside roughly 6,000 Marxist POUM militia members holding the lines at Monflorite. Approximately 4,000 Nationalist troops were trapped inside Huesca city. This force was a mixture of regular infantry troops from the local garrison, mutinous Guardia Civil, and highly radicalised right-wing Falangist volunteers. Approximately 2,500 to 3,000 professional Nationalist troops were also striking out from Zaragoza and Almudévar. Crucially, they were backed by technical superiority, including heavy field artillery and air frames provided by Germany’s early Condor Legion deployment.

Following their sweeping advance from Catalonia in the summer of 1936, Republican militia columns, predominantly composed of the anarchist CNT-FAI and the Marxist POUM (including British volunteer George Orwell), consolidated their positions around Huesca, with 2,000 to 2,500 militia troops holding forward defensive positions on the Santa Quiteria ridge and Tardienta. Lacking heavy artillery and armour support, they were severely outgunned. By 1 October, the Republic had established a semi-circular siege line tracking through villages like Tierz, Quicena, and Chimillas, effectively trapping the Nationalist garrison inside the provincial capital. Over the next eight days, Republican artillery stationed on the heights of Monte Aragón systematically bombarded the city’s defences. Despite cutting off water networks and placing the Nationalist garrison under severe, claustrophobic pressure, the uncoordinated militia columns lacked the heavy armour and unified command structure required to breach the inner defensive walls. By 8 October, every localized, frontal infantry assault launched by the militias had been repelled by disciplined Nationalist machine-gun crossfire. The siege ground to a highly static, defensive stalemate.

Tardienta in 1936, via Cronica, Biblioteca Nacional de Espana

Recognising that the Huesca garrison would eventually capitulate if completely isolated, the Nationalist command in Zaragoza launched a calculated, heavy offensive further south to secure the vital Zaragoza–Huesca highway and railway line. The critical junction of the sector was Tardienta, a town held by Republican forces that directly overlooked the rail line and housed a vital water aqueduct feeding the region. On 10 October 1936, Nationalist mobile columns, supported by heavy German-supplied artillery and air support, struck the Republican flank near Almudévar. The spearhead overran the key high-ground position of Santa Quiteria. This ridge was a catastrophic loss for the Republic, as it gave the rebels complete visual and ballistic command over the entire valley floor and the approaches to Tardienta.

Rather than overextending their infantry into a direct assault on Tardienta itself, the Nationalists utilised the next forty-eight hours to cement their gains. By 12 October, rebel engineers had established a string of strongly fortified trenches, concrete bunkers, and barbed-wire perimeters directly adjacent to Tardienta. The fighting between 1 and 12 October 1936 permanently dictated the nature of the war in Aragon. By capturing Santa Quiteria and fortifying the lines right outside Tardienta, the Nationalists achieved their primary goal: they permanently secured the Zaragoza–Huesca supply line, keeping the Huesca garrison alive and fed.

Because these early engagements consisted of fluid, uncoordinated militia clashes rather than standard regular army battles, military logs were not kept. However, based on the records of the Catalan militia columns (the CNT and PSUC’s Del Barrio Column) and the Marxist POUM archives, historians estimate that the total combat casualties for the Huesca and Almudévar–Tardienta operations during the first two weeks of October 1936 reached roughly 800 to 1,200 men killed, wounded, or missing across both factions.

Militiamen at Tardienta, date and author unknown

The Siege of Huesca fighting was characterised by static, grinding artillery duels and localised skirmishes around fortified outer farmlands and villages. The Republican militias incurred roughly 300 to 400 casualties (primarily wounded). Because they lacked heavy breakthrough armour and proper infantry coordination, frontal charges against Huesca’s stone perimeter and hidden Nationalist machine-gun nests consistently resulted in heavy localised losses. The Nationalist Garrison suffered roughly 100 to 150 casualties. Sheltered safely inside the city’s stone buildings, their primary losses came from the constant, daily Republican artillery bombardment launched from the heights of Monte Aragón.

The short, brutal engagement of the Almudévar–Tardienta clash was vastly bloodier due to the sheer intensity of the Nationalist counter-stroke, with approximately 250 to 350 Republicans killed or wounded. The defence of the strategic Santa Quiteria ridge was particularly devastating. Lacking overhead cover, the raw volunteer columns were completely shredded by German-supplied aviation and concentrated Nationalist field artillery before being driven off the plateau. Meanwhile, the Nationalist shock columns sustained roughly 150 to 200 casualties. While successful in capturing the ridge and permanently securing the vital Zaragoza highway, their infantry columns suffered notable losses while advancing uphill against dug-in anarchist and communist machine-gun teams.

For the Republicans, the failure to take Huesca and the loss of the Almudévar heights highlighted the structural weaknesses of the volunteer militia system when facing professional, rapid military engineering. The positions dug during this specific October window became the infamous, freezing, rat-infested trench lines that George Orwell would later immortalise in his masterpiece Homage to Catalonia.

In October 1936, casualties in this sector extended to the systematic political purges in the immediate rearguard of the front lines. Inside the Nationalist-held city of Huesca, anyone suspected of union affiliation or Republican loyalty was systematically arrested and executed. Executions in October shifted from completely random roadside paseos into organised group killings carried out against the walls of the Huesca Civil Cemetery. The month began with the infamous Fusilamientos del 1 de octubre de 1936. In a single morning, Nationalist execution squads shot 15 prominent political prisoners at the cemetery walls as a demonstration of total control over the local population. Throughout October, the pace of executions spiked every time Republican artillery shelled the town or when Republican planes bombed the urban centre. The Nationalists routinely extracted quotas of local prisoners to shoot in direct retaliation. On 12 October 1936, prominent local councillors and left-wing figures like Martín Ainsa Pinal were executed against the walls of the civil cemetery. While the number for October alone is subsumed into broader autumn totals, historical exhumation registries verify that the Nationalist repression claimed 1,519 lives across the province during the war, with the highest concentration of extrajudicial murders occurring between August and December 1936.

Leciñena, Zaragoza, Aragon

Over the first two weeks of October 1936, the dust-choked landscapes of the Monegros desert became the stage for one of the most violent see-saw battles of the early Aragon front. Centred along the jagged axis of Perdiguera, Leciñena, and the Sierra de Alcubierre, a massive Nationalist offensive collided head-on with a desperate Republican counter-stroke.
The fluid fighting rapidly transformed the arid hills from a loose manoeuvring ground into a heavily fortified network of trenches, the lines that would later be immortalised in global literature. For months following the summer coup, Republican anarchist militia columns (primarily the Ascaso Column and Catalan volunteer detachments) had pushed deep into western Aragon, threatening the Nationalist capital of Zaragoza from the east. Recognising the vulnerability of their flank, the Nationalist high command in Zaragoza launched a heavily coordinated, rapid offensive on 10 October 1936.

The Nationalists wanted to eliminate the dangerous Republican enclave at Leciñena, which sat uncomfortably close to the Zaragoza supply lines. By driving a professional wedge through the plain, the Nationalists aimed to secure the western approaches to the Sierra de Alcubierre, capture the vital high pass, and push the loose anarchist militia lines back into the mountains where they could be easily contained. Up to 10 October, the loose collections of Catalan and Aragonese anarchist militias operated on an offensive doctrine of fluid advance. Their plan was to use Leciñena as a forward staging ground to launch raids westward toward Perdiguera and eventually sever the primary transport links to Zaragoza. They had not prepared deep, integrated rearguard defence lines on the plains, relying instead on the natural barrier of the mountains behind them.

The flat basins of Perdiguera to Leciñena is part of the arid Monegros desert. It consists of wide, parched, completely open agricultural plains and low clay hills with virtually no natural tree cover and this terrain heavily favoured the Nationalists. Because there was nowhere for infantry to hide, the professional rebel troops could easily spot militia movements from afar and utilise their superior long-range artillery and aviation to shred advancing or retreating Republican groups. But the Sierra de Alcubierre sliced diagonally across the landscape with a rugged limestone mountain range. It is defined by steep, pine-scrub ravines, rocky cliffs, and a singular vital highway pass (El Puerto de Alcubierre). This terrain heavily favoured the Republicans once they retreated into it. The jagged, rocky topography neutralised the Nationalist advantage in cavalry and rapid motorised columns, allowing the retreating militiamen to dig shallow trenches into the limestone cliffs and establish an unassailable defensive wall.

In the area, the Nationalists had approximately 3,500 to 4,000 combatants. The spearhead was composed of seasoned regular army infantry columns from the Zaragoza garrison, supported by highly aggressive, politically motivated Falangist shock militias such as the Tercio de Doña María de Molina. As always, they also possessed an overwhelming advantage in organised field artillery batteries and early aviation support from German-supplied Junkers transport-bombers. The Republican volunteers had 4,500 to 5,500 militia made of an uncoordinated mix of volunteer columns. The core of the defence at Leciñena was held by the anarchist Karl Marx Column (composed largely of PSUC/UGT volunteers from Barcelona) and elements of the Ascaso Column (CNT-FAI). While holding a slight numerical advantage, they suffered from a severe lack of communication gear, no unified staff command, and little to no heavy weapon support.

The Nationalist brought along the standard combined-arms tactics and before sending infantry forward, they subjected Leciñena and the forward crossroads to intensive, concentrated artillery barrages designed to break the militias’ morale. They used cavalry and motorised trucks to rapidly outflank the wide, open sides of the Republican positions on the flat plains, threatening to cut off their escape routes back to the mountains. Meanwhile, the Republicans relied heavily on localised bravado and static checkpoint defense. Lacking centralised radio networks, individual groups fought fiercely for specific buildings or stone walls inside Leciñena but were completely unaware when neighboring positions were being flanked. Once the Nationalist columns bypassed their sides on the open plains, the Republican tactics collapsed into a disorganised but necessary tactical withdrawal up into the high ridges where numbers could be concentrated.

Exact location of the Republican militia undisclosed, via Ahora Biblioteca Nacional de España

On 12 October 1936, the military operations in the Perdiguera–Leciñena–Sierra de Alcubierre sector culminated in a decisive territorial shift that established the permanent baseline for the Aragon Front. The day’s events brought an end to the dynamic, three-day Nationalist offensive and solidified the geography of the sector into a frozen war of positions. Following their capture of the town of Leciñena the day before, Nationalist shock columns under the command of State Major Lieutenant Colonel Darío Gazapo completed their primary tactical objective when Nationalist forces pressed eastward from the valley floor and officially captured the Puerto de Alcubierre (the strategic mountain pass cutting through the range). The Nationalists immediately set up fortified defensive machine-gun posts and dugouts to the left and right of the main highway pass. This was designed to permanently block the Republican columns from ever utilising the road to march on Nationalist-held Zaragoza.

Faced with the loss of the pass and withering Nationalist artillery crossfire on the low plains, the Catalan and Aragonese Republican militias (including elements of the anarchist Ascaso Column and the Karl Marx Column) completed their withdrawal. The militiamen scrambled up into the highest, most rugged crests of the Sierra de Alcubierre mountain wall (specifically areas like Las Tres Huegas). On 12 October, the Republicans began carving out a hasty network of shallow, stone-lined trenches and bunkers directly into the high limestone ridges, as the Republican planned their counterattack on 14 October.

Sierra de Alcubierre seen from Leciñena, via Wikimedia Commons

As the frontline severed the region, the dark human toll of rearguard repression occurred directly inside Leciñena itself before the town was fully locked down by the Nationalist garrison. Before completely evacuating the urban centre to retreat into the high cliffs, retreating Republican militiamen executed 14 right-wing local citizens whom they had held imprisoned in the town. One of the most immediate measures adopted by the incoming Nationalist military authorities was the execution of local civilian non-combatants suspected of union affiliation or leftist sympathies. Forensic entries and historical registries document the summary execution of seven local neighbours, four men and three women, on 14 October 1936, just 48 hours after the town fell. Their remains lie in a specific, documented mass grave inside the cemetery and have since been formally honoured with a memorial plaque listing their names – Leonor Calvo Murillo, Asunción Pérez Giménez, Juliana Giménez Marcén, Escolástico Marcén Berdún, Mariano Solanas Sancho, Leandro Solanas Letosa, and Calixto Solanas Letosa. Beyond the immediate courtyard executions, the Nationalist repression specifically targeted the town’s democratic leadership. The Republican Mayor of Leciñena, Mariano Murillo Bagüés, was hunted down and executed alongside prominent town councillors and local residents, including Miguel Guardiola Blanco and Eugenio Tolosana Marcén.

For the families of Leciñena who had supported the legitimate Republican government, the Nationalist takeover brought permanent fragmentation. Many surviving left-wing residents were systematically rounded up and processed through the infamous Torrero Prison in Zaragoza. Dozens of Republican refugees from Leciñena fled north across the French border during the later stages of the war. A highly documented cohort of these local exiles was subsequently captured by Nazi forces in France and deported directly to the Mauthausen-Gusen concentration camp complex in Austria, where several perished in the crematoriums.

Alcoy, Alicante, Valencia

Immediately following the July 1936 military coup, legitimate local government authority collapsed in Alcoy. In its place, the powerful anarcho-syndicalist unions (CNT-FAI) and socialist factions (UGT) established the Comité Revolucionario de Defensa (Revolutionary Defense Committee) to assume total military, political, and judicial control over the municipality. Throughout September and early October, this committee directed the systematic rounding up of local conservative figures.
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By mid-October 1936, the central Republican government under Francisco Largo Caballero was desperately trying to rein in the chaotic, autonomous regional militia committees to form a unified Regular Army. On 12 October 1936, the CRD in Alcoy was officially dissolved and replaced by the more bureaucratic Consejo Económico Político Social (Economic, Political, and Social Council).

Alcoy was a deeply polarised industrial manufacturing hub (textiles, paper, and metallurgy) with a fierce history of labour strikes. When the war broke out, the targets of the 77 executions were highly specific to the town’s social structure. The Industrial Bourgeoisie, wealthy factory owners, directors, and managers who had locked horns with the unions during pre-war labour disputes, alongside the clergy, monks, priests, and nuns, particularly when local committee seized the historic Church of Santa María as their primary headquarters, executing several religious figures associated with it, along with the local chaplain of the hospital, Miguel Aracil Colomer. Also targeted was the town’s premiere elite conservative social club (Círculo Industrial) which was seized by the anarchists. Its deep subterranean coal cellars were converted into a notorious impromptu political prison and interrogation site, which also held members of the political party Derecha Regional Valenciana, or individuals suspected of supporting the July military coup.

The Comité Revolucionario de Defensa (CRD) of Alcoy wielded absolute political, economic, and judicial power over the city from 27 July to 12 October 1936, leaving a highly documented trail of rearguard repression, and directly linked to 77 violent deaths during its 11-week reign. Prisoners were typically rounded up, processed through makeshift tribunals, and taken outside the municipal boundaries to be executed along local roadsides or isolated ravines. The unchecked extrajudicial violence of the CRD came to an end on 12 October 1936, when the central Republican government officially dissolved the autonomous militia committees across the Valencian region. The CRD was replaced by the institutionalised Consejo Económico Político Social, which drastically curbed random rearguard killings in favor of formal wartime judicial protocols.

The CRD’s repression had been as much financial as it was physical. Under the guise of financing the war effort, the committee operated a specialised Hacienda (Treasury) Department. This office managed the systematic extraction of wealth through forced monetary ‘donations’ from wealthy right-wing families who paid under the threat of execution. The total expropriation and industrial collective hijacking (incautación) of privately owned local mills and textile factories.

Between 1939 and 1941, all 77 bodies were recovered by local authorities from specific the roadsides of the Carrasqueta and Font Roja, the twisting mountain passes surrounding Alcoy, and others were found directly against the back perimeter walls of the local cemetery in shallow communal trenches. All were exhumed and reburied in proper graves. As the town of Alcoy was never captured until after the war, there are minimal mass grave sites in the area.