The Spanish War of Independence By Sofy Dec 1, 1788 Carlos IV became King of Spain Oct 1, 1805 Battle of Trafalgar Oct 1, 1807 Treaty of Fontainebleau May 1, 1808 Abdication of Carlos IV/ Satrt of the Spanish War of Independence Jun 1, 1808 Joseph I became King of Spain Jul 1, 1808 Battle of Bailén Mar 1, 1812 Approval of the constitution Mar 1, 1813 Joseph I´s reign ended Dec 1, 1813 End of the War of Independence