The Manifesto of Manzanares (Spanish: Manifiesto de Manzanares) was issued 7 July 1854 in Manzanares, Spain. Drafted by Antonio Cánovas del Castillo and signed by General Leopoldo O'Donnell, it called for political reforms and a constituent Cortes to bring about an authentic "liberal regeneration".
In 1854, Spain was at the tail end of the década moderada, slightly over ten years of rule by the Moderate Party. In the last few years, the regime had become increasingly corrupt, and even many of those who were sympathetic to its overt political views had turned against it. On 28 June 1854 Leopoldo O'Donnell, General in Chief of the Constitutional Army, led a coup attempt known as La Vicalvarada, which ended indecisively. He and his forces had moved south to Manzanares, Ciudad Real, where they reconnoitered with other like-minded forces.
On 7 July 1854 O'Donnell issued a short manifesto drafted by the young Antonio Cánovas del Castillo, future architect of Spain's Bourbon Restoration of 1874. The manifesto called on all Spaniards to preserve the Throne but to get rid of the current government. It reflected the politics of the Progressive Party. In its entirety it reads:
Spaniards: The enthusiastic reception that the liberal Army has encountered in the towns; the efforts of the soldiers who make it up, so heroically shown on the fields of Vicálvaro; the applause with which the news of our patriotic uprising has everywhere been received, now assure the triumph of liberty and laws that we have sworn to defend.
Within the last few days, the greater part of the provinces have thrown off the yoke of the tyrants; the entire Army has come to place itself under our banners, which are those of loyalty; the nation will enjoy the benefits of a representative regime, for which until now so much useless blood has been shed and so many costly sacrifices made. The day has come, it seems, to say what we are resolved to do on the day of victory.