Editing Trienio Liberal (section)

==Revolution of Cabezas de San Juan==
[[Image:Cortes of the Trienio Liberal.jpg|thumb|left|200px|1820 print depicting the [[Cortes Generales]].]]
King Ferdinand VII provoked widespread unrest, particularly in the army, by refusing to accept the liberal [[Spanish Constitution of 1812]]. The King sought to reclaim the [[Spanish colonization of the Americas|Spanish colonies in the Americas]] that had recently revolted successfully, consequently depriving Spain of an essential source of revenue.

In January 1820, soldiers assembled at [[Cádiz]] for an expedition to South America, angry over infrequent pay, bad food, and poor quarters, mutinied under the leadership of Rafael del Riego.<ref>{{Cite book|last=Lawrence|first=Mark|url=https://www.worldcat.org/oclc/881418310|title=Spain's First Carlist War, 1833-40|date=2014|isbn=978-1-137-40174-8|location=New York, NY|pages=27|oclc=881418310}}</ref> Pledging fealty to the 1812 Constitution, they seized their commander.

Subsequently, the rebel forces moved to nearby [[San Fernando, Cádiz|San Fernando]], where they began preparations to march on the capital, [[Madrid]].