Vitača was Queen consort of Bosnia as the first wife of King Stephen Ostoja of Bosnia.

Vitača married Ostoja, the illegitimate son of King Tvrtko I of Bosnia

Tvrtko I of Bosnia

Stjepan Tvrtko I was a ruler of medieval Bosnia. He ruled in 1353–1366 and again in 1367–1377 as Ban and in 1377–1391 as the first Bosnian King....

, before his accession to the throne of Bosnia. Ostoja was a member of the Bosnian Church

Bosnian Church

The Bosnian Church is historically thought to be an indigenous branch of the Bogomils that existed in Bosnia during the Middle Ages. Adherents of the church called themselves simply Krstjani...

 and Vitača was most likely a member of that church as well. It is unknown whether they had any children.

Vitača became queen when her husband was elected to succeed Jelena Gruba

Jelena Gruba

Helen Gruba was the Queen regnant of Bosnia from 1395 to 1398. She was the only female ruler of Bosnia.Helen came from the noble House of Nikolić, which ruled a part of Zachlumia.-Queen consort:...

 in 1399. Vitača, however, was not related to the powerful nobility of Bosnia. Ostoja was forced to leave her, which was not hard to do because the Bosnian Church allowed divorce. The Ragusans

Republic of Ragusa

The Republic of Ragusa or Republic of Dubrovnik was a maritime republic centered on the city of Dubrovnik in Dalmatia , that existed from 1358 to 1808...

 referred to her as the repudiated wife of the King of Bosnia in September 1399; they kept correspondence with the ex-queen Vitača for some time after her divorce.

Ostoja married Kujava Radinović

Kujava Radinović

Kujava Radinović was the second wife of King Stephen Ostoja of Bosnia and as such she was Queen of Bosnia from 1399 to 1404 and again from 1409 to 1415. She was the daughter of the nobleman Radin Jablanić.-Marriage:...

and divorced her sixteen years later.