May Revolution
The mutiny of Aranjuez in 1808 led King Charles IV of Spain to abdicate in favor of his son, Ferdinand VII. Charles IV requested that Napoleon restore him to the throne; instead, Napoleon crowned his own brother, Joseph Bonaparte, as the new Spanish King. These events are known as the Abdications of Bayonne. Joseph's coronation was met with severe resistance in Spain, which started the Peninsular War, and the Supreme Central Junta took power in the name of the absent king. This also led to Spain switching allegiances from France to Britain. France eventually invaded Sevilla, and a Council of Regency based in Cadiz replaced the disbanded Supreme Central Junta.
History of Paraguay
Among the many causes of the May Revolution were Napoleon's invasion of Spain in 1808, the capture of the Spanish king, Ferdinand VII, and Napoleon's attempt to put his brother Joseph Bonaparte on the Spanish throne, which severed the major remaining links between the metropolis and the colonies as Joseph had no supporters in Spanish America. Without a king, the entire colonial system lost its legitimacy, and colonies revolted. The Buenos Aires open cabildo deposed the Spanish viceroy on May 25, 1810, vowing to rule in the name of Ferdinand VII. The May Revolution led to the creation of the United Provinces of the Rio de la Plata which wanted to bring Province of Paraguay under its control. This "porteño" action had unforeseen consequences for the histories of Argentina and Paraguay. News of the revolutionary events in Buenos Aires stunned royalist citizens of Asunción. Discontent with the Spanish monarchy was put aside because of the much bigger rivalry with the city of Buenos Aires.