Kammala jumla mai zuwa: Ya shiga cikin yakin basasa na Byzantine a Morea a farkon 1260s, kuma William II na Villehardouin ya kama shi bayan da
Yaƙin Makryplagi (1263/1264). A bayyane yake an sake shi a wani lokaci daga baya, a ca. 1270 ya rike ofisoshin "epi tes trapezes" da kuma gwamnan Tasalonika. Tare da "despotes" John Palaiologos, ya jagoranci sojojin Byzantine a kan John I Doukas na Thessaly, amma an ci shi da kashe shi a Yaƙin Neopatras (a cikin shekaru daban-daban zuwa 1273<unk>1275).