Alfonso XI of Castile and Leon 1311 – 1350

Biography

Alfonso XI of Castile and León was born on August 21, 1311, in Salamanca, entering a world of medieval Iberian complexity. He ascended to the throne in 1312, becoming king of Castile, León, and Galicia during a formative period in Spanish history. Though his reign began in infancy, Alfonso would grow to lead these united kingdoms during a time of significant political and territorial challenges across the peninsula.

Throughout his reign from 1312 until his death, Alfonso XI worked to consolidate power and maintain stability across his vast domains. His rule spanned nearly four decades, a considerable tenure for a medieval monarch. In the final year of his life, while in La Línea de la Concepción, Alfonso fell victim to plague—the devastating disease that claimed countless lives across Europe during the fourteenth century.

Alfonso XI was laid to rest at the Iglesia de San Hipólito in Córdoba, a fitting final resting place for a king who had ruled over such distinguished territories. His death on April 4, 1350, marked the end of an era. Though his reign was cut short by plague, Alfonso XI left behind a legacy as a significant medieval ruler of the Iberian kingdoms.