The Cárcel Modelo massacre was the execution of roughly 30 politicians and soldiers by anarchist militiamen who occupied a Madrid prison on 22 August 1936, in the opening months of the Spanish Civil War.
After defeating the 1936 military coup attempt, the Spanish government imprisoned some of the uprising's suspected political and military supporters at the Cárcel Modelo Prison in Madrid.
[1] The reigning Republican government saw its reputation falter from its inability to quell the crowd and protect the prisoners.
The incident sparked protests from the diplomatic corps in Madrid.
[3] However, following the election of November 1933 where left-wing parties performed well, Nationalists, Monarchists (Carlists and Alfonsist monarchists),[4] and Radical Republicans clashed with the governing Republicans in legal[5] and street fights.