Baudouin IX Ct of Flanders
Baudouin IX Ct of was born in July 1171.  He died at the age of 34 on July 11th, 1205.

 Marie de Champagne
Marie de was born in 1174 in Champagne,France.

 Margaret II Cts de Flanders
Margaret II Cts de was born on June 2nd, 1202 in Of,Valenciennes,Nord,France.¹   She died at the age of 77 on February 10th, 1280.  She was buried in ,Flines-Laes-Mortagne,Nord,France.¹