Robert I Count of Artois
Robert I was born in September 1216 in Paris, France.  He died in Egypt.

 Mahaut (Maud) Princess of Brabant
Mahaut (Maud) was born in 1224 in Brabant, Flanders (Belgium).  She died at the age of 64 on September 29th, 1288.

 Blanche D' Artois
Blanche was born in 1248 in Arras, France.  She died at the age of 54 on May 2nd, 1302 in Pari, France.