In 1302, Zaccaria was named admiral by Philip of France, in which capacity he conquered the island of Chios (1304), which had thitherto been in the hands of Moslem corsairs.
En 1302, Zaccaria foi nomeado almirante por Filipe de Francia, e en cuxa capacidade conquistou a illa de Quíos (1304), que até entón estivera en mans dos corsarios musulmáns.