Guillaume II DE DAMPIERRE Seigneur de Dampierre
(After 1196-1231)

Marguerite II DE HAINAUT Comtesse de Hainault et de Flandres
(1202-1279)

Seigneur Robert VII DE BÉTHUNE et Richebourg..
(Abt 1200-1248)

Elisabeth DE MORIALMÉ Dame de Beloeil et de Fraire-La-Grande
(Abt 1190-After 1243)

Guy III DE DAMPIERRE Count of Flanders & Namur
(Between 1225-1304)

Dame Mahaut (Mathilde) DE BÉTHUNE de Tenremonde, Richebourg et Warneton
(Abt 1220-1264)

Guillaume DE FLANDRE "Sans Terre"
(-)

Family Links

Spouses/Children:
Alix DE CLERMONT Heiress of Dunois

Guillaume DE FLANDRE
Jean DE FLANDRE
Guy DE FLANDRE
Marie DE FLANDRE
Isabelle DE FLANDRE Dame de Brion.
Jeanne DE FLANDRE

Guillaume DE FLANDRE "Sans Terre"

Research Notes:

The Genealogia Comitum Flandriæ names (in order) "Robertum, Willelmum, Iohannem episcopum Leodiensum, Balduinem et Philippum" the sons of "Guido…ex Mathilde filia Roberti Tenremontensis". The Chronicle of Guillaume de Nangis records that "Karolus comes Valesii" captured "Guido comes Flandrensium...cum duobus filiis Roberto et Guillermo" in 1299.

Seigneur de Dendermonde et de Crèvecœur, the former presumably transferred to him by his older brother.

http://fmg.ac/Projects/MedLands/FLANDERS,%20HAINAUT.htm#GuillaumeFlandredied1311

Marriage Information:

Guillaume married Alix DE CLERMONT Heiress of Dunois, daughter of Raoul III DE CLERMONT Seigneur de Nesle, Connétable de France and Alix DE DREUX Vicomtesse de Châteaudun. (Alix DE CLERMONT Heiress of Dunois was born about 1275 and died in 1330.)