Isabella I of Castile

Isabella I of Castile (1451-1504) was a significant figure in Spanish history. She became queen by marrying Ferdinand II of Aragon, uniting their kingdoms and effectively laying the groundwork for modern Spain. Isabella is best known for sponsoring Christopher Columbus' 1492 voyage, which led to the discovery of the Americas. She also played a crucial role in the Spanish Inquisition, aiming to consolidate Catholic orthodoxy in her realm. Isabella's reign marked the beginning of Spain's global exploration and power, making her one of the most important monarchs in European history.