Jean I de [Count of Flanders & Hainault] AVESNES
He married Aleida Countess of [Countess of Avesnes] Holland Sep 1246 at Frankfort am Main, Hessen-Nassau, Prussia . Aleida Countess of [Countess of Avesnes] Holland was born at of 's-Hertogenbosch, Noord-Brabant, Netherlands Abt 1226 .
They were the parents of 7
children:
Baudouin d' Avesnes
born Abt 1249.
Bouchard d' [Bishop of Metz] ] Avesnes
born 26 May 1251.
Guy d' [Bishop of Utrecht] Avesnes
born 1253.
Guillaume d' [Bishop of Cambrai] Avesnes
born 1254.
Floris d' [Prince of Achaja] Avesnes
born 1255.
Jeanne d' [Abbess of Flines] Avesnes
born Abt 1256.
Jean II de [Count of Holland & Hainault] Avesnes
born Abt 1247.
Jean I de [Count of Flanders & Hainault] Avesnes died 24 Dec 1257 at Valenciennes, Nord, France .
Aleida Countess of [Countess of Avesnes] Holland died 9 Apr 1283 at Valenciennes, Nord, France .