Army of the Three Guarantees
On September 27 the Army of the Three Guarantees entered Mexico City, and the following day Iturbide proclaimed the independence of the Mexican Empire. The newly formed Mexican congress eventually declared Iturbide emperor of Mexico on May 19, 1822. Later that year, Iturbide dissolved Congress and replaced it with a sympathetic junta. However, on March 19, 1823 Iturbide abdicated.