Despot
Serbian despot and Vukašin Mrnjavcevic 's brother. He was stated the master of the Serbian lands , Greece and Pomorje . He was a Despot in Serres from 1365 to 1371, succeeding the Empress Consort Helena .
The Patriarch of Constantinople mentioned the master of Serbia, Uglješa in a letter from 1371, Ugljesha's state was around Lower Struma .
He was killed in the Battle of Maritsa