The Lordship of Phocaea () was founded after in 1275, when the Genoese nobleman Manuele Zaccaria received the twin towns of Old Phocaea and New Phocaea as a fief from the Byzantine emperor Andronikos II Palaiologos. The Zaccaria family amassed a considerable fortune from their properties there, especially the rich alum mines. The Zaccaria held the lordship until 1340, when it was repossessed by the Byzantines under Andronikos III Palaiologos.
Lords of Old and New Phocaea
1275–1288 Manuele Zaccaria 1288–1304 Benedetto I Zaccaria 1304–1314 Benedetto II Zaccaria 1314–1331 Andriolo Cattaneo (he married Aeliana Zaccaria) 1331–1340 Domenico Cattaneo
Governors of Old and New Phocaea
1302–1307 Tedisio Zaccaria 1307 Nicolino Zaccaria 1307–1314 Andriolo Cattaneo 1329 Arrigo Tartaro
Sources Ανέκδοτα νομίσματα και μολυβδόβουλλα των κατά τους μέσους αιώνας Δυναστών της Ελλάδος / υπό Παύλου Λάμπρου, Εν Αθήναις : Εκ του Τυπογραφείου αδελφών Πέρρη, 1880, pages 66–73