Koja Zaharija

Koja Zaharia or Koja Zakaria (Italian: Coia Zaccaria) (?—before 1442) was an Albanian nobleman and a member of the Zaharia family.

In Ragusan documents he is referred to as Kojčin or Gojčin. Because of that many scholars like Nicolae Iorga, Ludwig Thalloczy and Konstantin Jireček have mistakenly believed he was actually Gojčin Crnojević.

His name is rendered by Robert Elsie as Koja Zacharia or Koja Zakarija.

His wife was Boša (Bosa, Boža, Boxia), daughter of Leka Dukagjin who was a father of Tanush Major Dukagjin. Their children were Lekë Zaharia (son), Bolja (daughter) and daughter of unknown name who married Đurađ Đurašević Crnojević. Koja died sometime before 1442. According to Ćiro Truhelka Bolja Zaharia was married to Petar Vojsalić, while according to Aleksa Ivić she was married to Petar I Pavlović. Koja's widow Boša died in Scutari on 19 September 1448 when a lot of people died during a fire in the town.

Until 1395 Koja Zaharia was castellan of Sati, which belonged to a fief of Konstantin Balšić and was part of the Lordship of Zeta under Đurađ II Balšić. In 1395 Balšić ceded Sati (with Dagnum) together with Scutari and Drivast to the Venetian Republic (in order to create a buffer zone between his Zeta and the Ottoman Empire), but Zaharia refused to allow the Venetians to take control over Sati.