Fernando IV Ivrea of Castile, King of Castile, King of Toledo, King of León, King of Galicia, was born 6 December 1285 in Seville, Spain to Sancho IV of Castile (1258-1295) and María de Molina (c1264-1321) and died 7 September 1312 Jaén, Spain of unspecified causes. He married Constança of Portugal (1290-1313) 1302 JL in Valladolid, Spain. Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Henry II of England (1133-1189)/s, Hugh Capet (c940-996)/s, William I of England (1027-1087)/s, Rollo of Normandy (860-932)/s.
|Offspring of Fernando IV of Castile and Constança of Portugal (1290-1313)|
|Leonor of Castile (1307-1359)||1307||1359||Alfonso IV of Aragon (1299-1336)|
|Constanza of Castile (aft1308-aft1310)|
|Alfonso XI of Castile (1311-1350)||13 August 1311 Salamanca||26 March 1350 Gibraltar||Constance of Peñafiel (aft1315-1345) Maria of Portugal (1313-1357) Constance of Peñafiel (aft1315-1345) Maria of Portugal (1313-1357) Leonor de Guzmán (1310-1351)|