Constance of Portugal

Constance of Portugal (1290–1313) was queen of Castile and León as the wife of Ferdinand IV. Eldest child of Denis of Portugal and Elizabeth of Aragon, she married Ferdinand at Valladolid in January 1302.

Her children included Eleanor, later queen of Aragon, and Alfonso XI, born in 1311. When Ferdinand died at Jaén in September 1312, she escorted his body to Córdoba for burial amid regency quarrels over her infant son. She died at Sahagún in November 1313, aged twenty-three.