In March 1365, emperor Uroš V issued a charter to Hilandar (on Mount Athos) at the request of Branko's son "starac" (elder) Roman, who agreed with his brothers Vuk and Grgur to grant the Church of the Holy Archangel to Hilandar. Spremić believes that he died sometime before March 1365. After his death, in the period of the Fall of the Serbian Empire, his sons retreated north, to Drenica. During the reign of Uroš V, his sons Vuk and Grgur held only their hereditary land in Drenica. Branko's oldest son Radonja was married to Jelena, the sister of Uglješa and Vukašin Mrnjavčević. Vuk started expanding his province after the Battle of Maritsa (1371). His daughter Vojislava (Teodora) married George Thopia, the Lord of Durazzo.