William Longespée was born circa 1212 to William Longespée, 3rd Earl of Salisbury (c1176-1226) and Ela, 3rd Countess of Salisbury (c1187-1261) and died 7 February 1250 Battle of Al Mansurah of killed in action. He married Idonea de Camville (c1208-c1252) 1216 JL . William I of England (1027-1087), Henry II of England (1133-1189), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Hugh Capet (c940-996)/s, Rollo of Normandy (860-932)/s.
|Offspring of William Longespée and Idonea de Camville (c1208-c1252)|
|Ela Longespée (c1226-1299)||1226 England, United Kingdom||22 November 1299||James de Audley (c1230-c1276)|
|William Longespée (c1230-c1257)|
|Ida Longespée (-aft1271)|