Gerhard — . Unknown [Group Sheet]
Isabelle — Jean de Ghistelles. Jean (son of Jean de Ghistelles and Marie de Luxembourg) was born Abt 1315; died Abt 1380. [Group Sheet]
Jean — Marguerite de Reinglaset. [Group Sheet]
Isabeau married Robert de Béthune Abt 1385. Robert (son of Jean de Béthune and Jeanne de Coucy) was born Abt 1351; died 1408. [Group Sheet]