His tenure appears to have been peaceful as regards the conflict with the Byzantine Greeks of Mystras, but the issue of the succession remained open as Isabella had but one daughter, Matilda of Hainaut (born 1293).
O seu goberno parece ser pacífico no que respecta aos conflitos cos gregos bizantinos de Mistrá, pero o tema de sucesión permaneceu aberto xa que Isabel só tiña unha filla, Matilde de Hainaut (nada en 1293).