William Plantagenet de Warenne was born 1256 to John de Warenne (1231-1304) and Alice de Lusignan (1224-1256) and died 15 December 1286 of a tournament accident. He married Joane de Vere (c1261-) June 1285 JL . Charlemagne (747-814)/s, Hugh Capet (c940-996)/s.
William married Joan, daughter of Robert de Vere, 5th Earl of Oxford. They had the following children:
- John de Warenne, 7th Earl of Surrey (30 June 1286 – June 1347)
- Alice de Warenne (15 June 1287 - 23 May 1338), wife of Edmund FitzAlan, 9th Earl of Arundel.
William was killed in a tournament at Croydon in 1286, predeceasing his father. It has been suggested that this was murder, planned in advance by William's enemies. On the 5th Earl's death the title went to John, the only son of William. John died without legitimate children, so on his death the title passed to Richard FitzAlan, 10th Earl of Arundel, eldest son of Edmund FitzAlan and John' sister Alice.
|Offspring of William and Joane de Vere (c1261-)|
|John de Warenne (1286-1347)||30 June 1286||June 1347||Joan of Bar (1297-1361) Maud de Nerford (1292-1345) Isabella Holland Joan of Bar (1297-1361) Maud de Nerford (1292-1345) Isabella Holland unknown partner|
|Alice de Warenne (1287-1338)||1287||1338||Edmund FitzAlan, 9th Earl of Arundel (1285-1326)|
- wikipedia:en:William de Warenne (1256-1286) - Wikipedia
- William de Warenne - disambiguation
- Royal Title Ancestors #3702
- Warenne Family Ancestry
- History of English Earls
- ^ Frederick Lewis Weis, Walter Lee Sheppard and William Ryland Beall, The Magna Charta Sureties, 1215: The Barons Named in the Magna Charta, 1215, and Some of Their Descendants who Settled in America During the Early Colonial Years (Genealogical Pub. Co., 1999), p. 184
- ^ Juliet R. V. Barker, The Tournament in England, 1100-1400 (Boydell Press, 1986), p. 47
- ^ The Chronicle of Bury St Edmunds, ed. A. Gransden (Nelson, 1964), p. 87