Spain has proclaimed a number of Constitutions. The current Constitution of Spain of 1978 is the culmination of the Spanish transition to democracy.
The idea of a national constitution for Spain arose from the Declaration of the Rights of Man and of the Citizen initiated as a result of the French Revolution. The earliest constitution was written and promulgated in 1808 when Napoleon invaded Spain, Bourbon monarchs Ferdinand VII and Charles IV abdicated, and Napoleon placed his brother Joseph Bonaparte on the throne. A constitution was drafted and the Junta Española Joseph I signed it. A major feature of the Constitution of 1808 was the provision for representation by Spanish America on an equal basis with the peninsula. Although signed by Spanish aristocrats and the new monarch, few in Spain recognized this document.