The Mutiny of Aranjuez (Spanish: Motín de Aranjuez) was an uprising led against King Charles IV that took place in the town of Aranjuez, Spain on 17–19 March 1808. The event, which is celebrated annually in the first week of September, commemorates the fall of the monarch and the subsequent accession of his son Ferdinand VII.
The revolt was instigated by disgruntled citizens and by Ferdinand's supporters.
Before the mutiny, Charles IV's valido, or prime minister, Manuel de Godoy, a former member of the Royal Guard, had become unpopular among both the nobles and the Spanish people.
The nobility resented how Godoy had attained power even though he was born in poverty and obscurity. Most notable among them was the King's own son Ferdinand, who had led the El Escorial Conspiracy a few months earlier. The people were upset about Godoy's ambitious nature, his flirting with many women of the court and his willingness to have Catholic Spain make treaties with atheist Revolutionary France against Christian (though Anglican) Great Britain.
Another important factor was the economic crisis affecting the country, which was heightened after Spain lost its navy in the Battle of Trafalgar in 1805. This had impaired trade with the American colonies, causing food shortages and affecting industrial production.
In addition, under terms of the Treaty of Fontainebleau, the King and Godoy had allowed French Emperor Napoleon's troops to cross Spain to attack Portugal. This move was extremely unpopular with the Spanish people, who saw the entry as a humiliating invasion (which it soon became). French troops rapidly occupied the important cities of San Sebastián, Pamplona, and Barcelona, fuelling Spanish sentiment against Godoy.