Jean De Brienne
Jean was born about 1225 in Acre, Palestine, Jerusalem.¹   He died in 1296.¹ 

 Jeanne De Chateaudun
Jeanne was born in 1227 in Acre, Palestine, Jerusalem.²   She died at the age of 24 in 1251.² 

 Blanche De Fiennes
Blanche was born in 1245 in Courtrain, Mymm, France.²   She died at the age of 57 in 1302 in Wigmore Castle, Herefordshire, England.²