The Monument to the Constitution of 1812 is a monument in Cádiz, Spain that commemorates the centennial of the signing of the Constitution of 1812. The monument, commissioned in 1912 and completed in 1929, is located in the centre of the Plaza de España in Cádiz.
The Cortes of Cádiz was a revival of the traditional cortes (Spanish parliament), which as an institution had not functioned for many years, but it met as a single body, rather than divided into estates as with previous ones.
The General and Extraordinary Cortes that met in the port of Cádiz starting 24 September 1810 "claimed legitimacy as the sole representative of Spanish sovereignty", following the French invasion and occupation of Spain during the Napoleonic Wars and the abdication of the monarch Ferdinand VII and his father Charles IV. It met as one body, and its members represented the entire Spanish Empire, that is, not only Spain but also Spanish America and the Philippines.