Charles I of Castile and Aragon and V of the Holy Roman Empire, King (in Castile and Aragon), Emperor (in the Holy Roman Empire) (Kingdom of Sicily (Spain)) : All Data

Charles I of Castile and Aragon, also known as Charles V of the Holy Roman Empire, ruled from 1517 to 1556. He held power over Aragon, Castile, Austria, the Low Countries, and the Holy Roman Empire. During his reign, Charles faced several significant wars, including the Italian Wars (1521-1526), the Schmalkaldic War (1546-1547), and the Revolt of the Comuneros (1520-1521). These conflicts shaped his rule and tested his ability to maintain control over his vast territories. Charles' reign was marked by his efforts to consolidate power and defend Catholicism against the Protestant Reformation, making him a pivotal figure in European history.