William III of Forcalquier

William III Count of Forcalquier and Marquis of Provence (d. Oct 1129) was the son of Ermengol IV of Urgell and Adelaide. Between 1076 and 1080 William, married Gersende of Albon, daughter of Guigues VIII of Albon and Grenoble and Mathilda. William III died in Avignon, France.

Child of William III of Forcalquier and Gersende of Albon

• Bertrand II Count of Forcalquier (c. 1110-bt 1149-1150) who married Josserande de la Flotte and eventually succeeded him.

Sources

Stuart, Roderick W. (2002). Royalty for Commoners, The Complete Known Lineage of John of Gaunt, Son of Edward III, King of England, and Queen Philippa (Fourth ed.). Baltimore: Genealogical Publishing Company.