Background
Vukac was born in the second half of the 14th century, the second son of Hran Vuković Kosača. The younger brother of veliki vojvoda (Grand Duke) of Hum, Sandalj Hranić (l 1370–1435), and older brother of knez Vuk Hranić (d 1424).
Vukac was born in the second half of the 14th century, the second son of Hran Vuković Kosača. The younger brother of veliki vojvoda (Grand Duke) of Hum, Sandalj Hranić (l 1370–1435), and older brother of knez Vuk Hranić (d 1424).
The Republic of Ragusa granted Sandalj, Vukac, Vuk and Stjepan the status of Ragusan nobility and senators and an estate in Ragusa (Dubrovnik) by charter dated June 29, 1419. Vukac was actively part of the peace talks between the Kingdom of Bosnia and the Republic of Ragusa in 1405. During the peace talks between dukes Radoslav Pavlović and Sandalj, besides the Ragusans, Vukac actively participated working for peace (he was Sandalj"s brother and Radoslav"s father-in-law).
Peace was concluded on February 1, 1423.
In February 1425, Brailo Tezalović and Vukac arrived at Ragusa to once again start talks about the sale of Radoslav Pavlović"s part of Konavle to the Republic of Ragusa. After the sale of eastern Konavle by Radoslav to the Republic of Ragusa in 1426, Vukac and Radoslav Obradović received 200 ducats each.
Vukac died in 1432. Stjepan Vukčić Kosača, vojvoda
Teodora Vukčić, married Radoslav Pavlović (1420-1441)
lieutenant is possible that Vukac had another son, Isa-Beg Isaković, the first governor of Ottoman Bosnia (1450s–60s).