Count Baldwin of Hainault III
Baldwin was born in 1087.¹   He died at the age of 33 in 1120.¹ 

 Yolande de Gueldre
Yolande was born in 1089 in Wassenburg, Rhineland, Prussia.¹   She died at the age of 38 in 1127.² 

 Richilde of Hainault
Richilde was born in 1105.¹ 

 Count Baldwin (The Builder) of Hainault IV
Baldwin, known as The Builder, was born in 1108 in Mons, Hainault, Belgium.²   He died at the age of 64 on November 13th, 1172.² 

 Ida de Hainault
Ida was born in 1109.¹