Jean I De Dampierre
Jean I De was born about 1266.  He died in 1330.

 Marie D' Artois
Marie D' was born about 1291.  She died in 1365.

 Blanche De Dampierre
Blanche De was born about 1320.  She died in 1363 in Copenhagen.

 Marie De Dampierre
Marie De was born in 1322.  She died at the age of 32 in 1354.

 Guillaume I De Dampierre
Guillaume I De was born in 1324.  He died at the age of 67 on October 1st, 1391.