Bouchard D' Avesnes
Bouchard was born in 1182 in Oizy Namur Belgium.

 Marguerite Countess Of Flanders And Hainault
Marguerite Countess was born on June 2nd, 1202.

 Jean I Count Of Holland D' Avesnes
Jean I Count Of Holland was born in 1218 in Etroent Luxembourg.  He died at the age of 39 on December 24th, 1257.