Ferdinand IV, Spanish king of Castile and León

Ferdinand IV, 1285–1312, Spanish king of Castile and León (1295–1312), son and successor of Sancho IV. His mother, María de Molina, was regent during his turbulent minority. He tried unsuccessfully to take Algeciras from the Moors but conquered (1309) Gibraltar with the help of Aragón. He was succeeded by his son, Alfonso XI.

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