Joan de Bar was born in 1295.2 She was the daughter of Henry III de Bar, Comte de Bar and Eleanor of England.1 She married John de Warenne, 8th Earl of Surrey, son of William de Warenne and Joan de Vere, before 1315.2
She and John de Warenne, 8th Earl of Surrey were divorced in 1315.2 She died in 1361.2
S106 Royal Genealogies Website (ROYAL92.GED)
online http://www.daml.org/2001/01/gedcom/royal92.ged.
S11 Alison Weir, Britain's Royal Families:
The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 82.