The First Spanish Republic was the short-lived political regime that existed in Spain between the parliamentary proclamation on 11 February 1873 and 29 December 1874 when General Arsenio Martínez-Campos's pronunciamento marked the beginning of the Bourbon Restoration in Spain. The Republic's founding started with the abdication as King on 10 February 1873 of Amadeo I, following the Hidalgo Affair, when he had been required by the radical government to sign a decree against the artillery officers. The next day, 11 February the republic was declared by a parliamentary majority made up of radicals, republicans and democrats.