July 21 A proclamation declaring a "State of War" was read by Captain Emilio Vela-Hidalgo, Captain of Cavalry (and nephew of the Republican General Manuel Cardenal Dominicis), at the Military Academy at 7 a.m. in the Zocodover, the main plaza of
Toledo. Euphemistic orders were given for "the arrest of well-known left-wing activists" in Toledo, but only the governor of the local prison was arrested. The Republican troops sent from Madrid first arrived at the Hospital of Tavera on the outskirts of Toledo but redirected their attack towards the Arms Factory upon receiving heavy fire from the hospital. A detachment of 200
Guardia Civil was stationed at the Arms Factory and negotiations with the Republicans ensued. During these talks, the
Guardia Civil loaded trucks with ammunition from the factory and sent it to the Alcázar before evacuating and destroying the factory.
July 22 – August 13 By July 22, the Republicans controlled most of Toledo and sought the surrender of the Alcázar by artillery bombardment. For the duration of the siege, the Nationalists engaged in a passive defence, only returning fire when an attack was imminent. Colonel Moscardó was called on the telephone by the chief of the Worker's Militia, Commissar Cándido Cabello, on the morning of July 23 in Toledo and told that if the Alcázar were not surrendered within ten minutes, Moscardó's 24-year-old son, Luis, who had been captured earlier in the day, would be executed. Moscardó asked to speak to his son and his son asked what he should do. "Commend your soul to God," he told his son, "and die like a patriot, shouting,'¡Viva Cristo Rey!' and '¡Viva España!' The Alcázar does not surrender." "That," answered his son, "I can do." Luis was immediately shot, contrary to the rumour that he was not in fact shot until a month later "in reprisal for an air raid".
August 14 – September 17 On August 14, the Republicans changed tactics after they felt the defences on the northern side of the Alcázar had been sufficiently reduced. Over the next five weeks, the Republicans attacked the House of the Military Government on eleven occasions but were turned back each time by the Nationalists. After the war, Franco posthumously awarded Guillermo Juárez de María y Esperanza, with the
Orden del Mérito Militar for his bravery in the breach. Had the Republicans captured the House of the Military Government, it would have enabled them to mass a large number of troops only away from the Alcázar. An envoy from the Republicans,
Major Rojo, was sent to Moscardó on September 9 to ask for the surrender of the Alcázar. This was refused, but Moscardó requested for a priest to be sent to
baptize the two children born during the siege and to also say
Mass. Vázquez Camarassa, a Madrid preacher with left-wing views, was sent to the Alcázar during the morning of September 11, performed the necessary functions and issued a
general absolution to the defenders of the Alcázar. That evening, Rojo met with Moscardó to discuss the evacuation of the women and children. The women unanimously replied that they would never surrender and if need be would take up arms for the defence of the Alcázar. The Chilean Ambassador to Spain, José Ramón Gutiérrez, having heard that the previous attempts for surrender failed, went on September 12 to secure the surrender of the Alcázar. He was unable to contact Moscardó because the telephone wires had been damaged the previous night from grenades thrown by the Republican militias and he was unwilling to use other methods of communication.
September 18 From August 16 the Republicans had been digging two mines towards the southwest tower of the Alcázar. On the morning of September 18, explosives in the mines were detonated by
Francisco Largo Caballero, completely destroying the southwest tower and the two defenders in it. Approximately 10 minutes after the explosion, the Republicans launched four attacks on the Alcázar with the aid of armoured cars and tanks. The attacks failed after a determined defence by the Nationalists, but the Republicans responded with a continuous artillery bombardment of the Alcázar throughout the night and into the next day.
September 19–26 The bombardment of the outlying buildings had been so great that communication between them and the Alcázar had become impossible. A withdrawal from the buildings was ordered and by the night of September 21, the garrisons were concentrated in what remained of the Alcázar. The Republicans attacked the outlying buildings on the morning of September 22, but progress was slow because they did not realize that the buildings had been abandoned. At 5 a.m. on September 23, the Republicans assaulted the northern breaches of the Alcázar and surprised the defenders by lobbing grenades and dynamite. The Nationalists on that side were driven into the courtyard of the Alcázar, but reserves arrived from elsewhere in the building to drive back the attack. A fresh assault was mounted later in the morning, this time led by a tank. Wave after wave of Republican soldiers attacked the breaches, but after 45 minutes the attack had ground to a halt and fell back. == Relief ==