John Zenevisi or Gjon Zenebishi ( or Gjin Zenebishi; died 1418) was an Albanian magnate that held the estates in Epirus, such as Argyrokastro (Gjirokastër) and Vagenetia. Name Zenevisi can be found with different spellings in historical documents. His name in modern English is usually John Zenevisi or John Sarbissa. In Italian, his name was spelled as Giovanni Sarbissa. In Albanian, his name is mostly spelled as Gjin Zenebishi (less commonly as Zenebishti), his given name scarcely spelled Gjon, as well. In Serbian his name is spelled like Jovan Zenović. Life The Zenevisi family was from the Zagoria region, between Përmet and Argyrokastro (Gjirokastër). In 1381 and 1384, the Catholic lords of Arta asked the Ottoman troops for protection against the invading Albanian clan of the Zenevisi; the Ottomans routed the raiders and restored order in Epirus. Zenevisi submitted to the Ottomans after their victory against Balša II in the Battle of Savra in 1385, and gave them his son as a hostage to be sent to Edirne to the court of the sultan (this son became known as Hamza, an Ottoman official). Shortly after his submission, Zenevisi revolted and seized the fortress of Gjirokastër, encouraged no doubt by the attack on Ioannina by the Albanians of Acarnania. In 1386 he titled himself with the Byzantine title of sevastokrator. Zenevisi was married Irene, the daughter of Gjin Bua Shpata, Despot of Arta, and thus became the son-in-law of Shpata and the brother-in-law of the wife of Esau de' Buondelmonti Despot of Epiros. In 1399 Esau, supported by some Albanian clans, marched against his wife's brother-in-law John Zenevisi of Gjirokastër. Now Esau was routed and captured, and much of his land was occupied by Zenevisi. The neighboring magnates determined to restore the captured despotes and secured Venetian intercession in his favor. Esau returned to Ioannina in 1400, regaining the reign from Zenevisi. In 1402, Esau divorced Irene Shpata and married Jevdokija Balšić, the brother of Konstantin Balšić, a leading Ottoman official in northern Albania. After Esau's death (February 6, 1411), his wife Jevdokija tried to take control of Ioannina, but the town exiled her and appointed Esau's nephew, Carlo Tocco, as lord (he arrived on April 1, 1411). In 1412 Maurice Shpata and Zenevisi (who was the leader of the most powerful tribe in the vicinity of Ioannina) formed an alliance against Carlo Tocco. They won an open-field battle against Tocco