William married Ermengarde of Tonnerre in 1045. Ermengarde (daughter of Renaud, Count of Tonnerre) was born about 1032; died in 1083. [Group Sheet] [Family Chart]
Ermengard married Hubert de Beaumont, Viscount of Maine on 6 Dec 1067. Hubert (son of Ralph III de Beaumont, Vicomte of Maine and Emma de Montrevault) was born about 1040; died before 1095. [Group Sheet] [Family Chart]
Sibylle married Hugh I of Burgundy, Duke of Burgundy about 1075. Hugh (son of Henry of Burgundy and Sibylle of Barcelona) was born in 1057; died on 29 Aug 1093 in Cluny, Saône-et-Loire department, Bourgogne, France. [Group Sheet] [Family Chart]
Family/Spouse: Ida Raimonde of Lyon, Countess of Forez. Ida (daughter of Artaid IV (V), Count of Forez and Ida) was born about 1057; died about 1085. [Group Sheet] [Family Chart]
Ralph married Sister de Laval on 24 May 1095. Sister (daughter of de Laval) and died. [Group Sheet] [Family Chart]
Ermengard married Miles (Milo) de Courtenay, Sire of Courtenay about 1095. Miles (son of Josselin de Courtenay, Sire of Courtenay and Elizabeth de Montlhéry) was born about 1069 in Courtenay, Loiret, France; died in 1127. [Group Sheet] [Family Chart]
Family/Spouse: Constance Beauclerc of England de Normandy. Constance (daughter of Henry I Beauclerc of Normandy, King of England and Adela (Sybil, Sybilla) Corbet) was born about 1100; and died. [Group Sheet] [Family Chart]
Family/Spouse: Hawise de Donjon. Hawise (daughter of Frederick de Donjon) and died. [Group Sheet] [Family Chart]
Family/Spouse: Hawise d'Eyncourt. Hawise died about 1219. [Group Sheet] [Family Chart]
Family/Spouse: Maud du Sap. Maud (daughter of Robert FitzEdith, Baron of Okenhampton and Maud d'Avranches) died in 1224. [Group Sheet] [Family Chart]