 Pandulf married off John's sister to Ranulf Drengot, the Norman mercenary who had recently been widowered by the duke of Naples' sister.Thus, Pandulf used his niece and his sister to seize power in Amalfi and draw his Norman supporters away from Sergius of Naples.In 1038, the Holy Roman Emperor Conrad II deposed Pandulf and John was able to return to Amalfi.