Dobrotitsa (Bulgarian: Добротица, pronounced [doˈbrɔtit͡sɐ]; Romanian: Dobrotici or Dobrotiță; Τομπροτίτζας in contemporaneous Byzantine documents;[1] Dobrodicie in contemporaneous Genoese documents[2]) was a Bulgarian noble, ruler of the de facto independent Principality of Karvuna and the Kaliakra fortress from 1354 to 1379–1386.
[3][4][5] Dobrotitsa's ethnic origin is disputed, in consequence he is considered by some a Bulgarian[6] noble kindred of the Terter dynasty (from the Cuman Terteroba clan),[7][8] to others a Vlach (mostly by Romanian historians),[9] and to others a Christianized Turk.
[11] In 1346, Dobrotitsa and his brother Theodore were sent along with 1,000 soldiers by the Dobrujan ruler Balik to help the Byzantine Empress Anna of Savoy in the civil war against John VI Kantakouzenos, but were defeated by George Phakrases.
In 1348 Dobrotitsa took over the fortress of Midia and by 1356 managed to seize Kozyak (present-day Obzor) and Emona from the Byzantines.
In the fall of the same year Amadeo's navy captured Anchialos, Mesembria, Emona and on 25 October he besieged the strong fortress Varna, where he was repulsed.