Colonization grant given to Moses Austin to settle Texas. Plan of Iguala proclaims Mexican independence. Augustín de Iturbide and Spanish envoy sign Treaty of Córdoba recognizing Mexico's independence. treaty not honored by Spanish government, however.
Army of the Three Guarantees occupies Mexico City under Iturbide's command. Iturbide becomes emperor of Mexico as Agustín I. Iturbide deposed, and republic proclaimed by Antonio López de Santa Anna Pérez de Lebrón.
Guadelupe Victoria becomes first Mexican president.
Spanish: from castillo ‘castle’, ‘fortified building’ (Latin castellum), a habitational name from any of numerous places so named or named with this word.