Family Group

Husband
Guillaume De Avesnes, Count

Born: ABT 1280 - Hainault, France, Pas-de-Calais, France
Marr: 29 May 1305 - Belgium, Chanay, Ain, France
Died: 7 Jun 1337 - Vallenciennes, Nord, France
Father:
Jean De Avesnes, CountMother:
Philippine De Luxembourg, CountessOther Spouses:
Wife
Jeanne De Valois, Countess 
Born: ABT 1294/1295 - Fontainebleau, Seine-Et-Marne, France
Died: 7 Mar 1342 - Fontenelle, Yonne, France
Father:
Charles De Valois, CountMother:
Marguerite , Princess Of Sicily & NaplesOther Spouses:
Children
1.
Sibylla De Avesnes, Countess Born: 1310 - Le Quesnoy, Nord, France
Died: -


2.
Margaretha De Avesnes, Countess
Born: 1311 - Le Quesnoy, Nord, France
Marr: 1324 - Ludwig Bavaria, Duke
Died: 23 Jun 1356 - Le Quesnoy, Nord, France


3.
Jan De Avesnes, Count Born: ABT 1313 - Le Quesnoy, Nord, France
Died: 1316 -


4.
Philippa De Avesnes, Countess
Born: 24 Jun 1311 - Mons, Hainaut, Belgium
Marr: 1327 - Edward Plantagenet, King
Died: 14 Aug 1369 - Windsor Castle, Windsor, Berkshire, England


5.
Johanna De Avesnes, Countess Born: ABT 1315 - Le Quesnoy, Nord, France
Marr: 1334 - Wilhelm Julich, Duke
Died: 1374 -


6.
Willem De Avesnes, Count
Born: ABT 1317 - Le Quesnoy, Nord, France
Marr: 1334 - Jeanne Brabant, Duchess
Died: 26 Sep 1345 - Warns, Friesland, Netherlands


7.
Agnes De Avesnes, Countess Born: ABT 1320 - Le Quesnoy, Nord, France
Died: AFT 24 Nov 1327 -


8.
Elisabeth De Avesnes Born: ABT 1323 - Le Quesnoy, Nord, France
Marr: 1354 - Robert De Namur
Died: 30 Jan 1361 -


9.
Louis De Avesnes, Count Born: ABT 1325 - Le Quesnoy, Nord, France
Died: 1328 -
Family Group

Husband
Enguerrand De Coucy 
Born: 1342 - Coucy Le Chat, Aisne, France
Marr: 27 Jul 1365 - Windsor, Berkshire, England
Died: 18 Feb 1396/1397 - Bursa, Bursa, Turkey
Father:
Mother:
Other Spouses:
Wife
Isabel Plantagenet, Princess 
Born: 16 Jun 1332 - Palace, Woodstock, Oxfordshire, England
Died: BEF 7 Oct 1382 -
Father:
Edward Plantagenet, KingMother:
Philippa De Avesnes, CountessOther Spouses:
Family Group

Husband
John Plantagenet, Duke 
Born: 24 Jun 1340 - Abbaye de St Bav, Gand, Flandre-Oriental, Belgium
Marr: Sep 1371 - Rochefort-Sur-Me, Charente-Maritim, France
Died: 3 Feb 1398/1399 - Leicester Castle, Leicestershire, England
Father:
Edward Plantagenet, KingMother:
Philippa De Avesnes, CountessOther Spouses:
Blanche Plantagenet Catherine De Roet Marie De St. Hilaire
Wife
Constanza , Princess 
Born: 1354 - Castrojeriz, Burgos, Spain
Died: 24 Mar 1394 - Leicester, Leicestershire, England
Father:
Pedro I , King Of Castile And LeonMother:
Maria PadillaOther Spouses: