His father Vojin was a general (vojvoda) with the title of knez, while his younger brother Vojislav also had the title of knez. Altoman was the middle son of Vojin, a general that served King Stefan Dečanski and King Stefan Dušan and held the title of knez of Humanity, Latin
Vojin"s support of Dušan further elevated the Vojinović family. In 1333, King Dušan sent the eldest son, Miloš, to Ragusa as part of the negotiation team Altoman was a župan somewhere in the surroundings of Ragusa (being mentioned with the title in 1340) while Vojislav was a stavilac, who then received the title of knez in 1355, after being very active and useful to Emperor Dušan in the period of 1350-1355.
After the Emperor"s death (20 December 1355), it seems that Vojislav progressed, his influence and territory becoming greater.
Branko"s son was Vuk Branković, a later magnate. In c. 1340, Altoman had the title of župan, while his high reputation is seen from the Republic of Ragusa renting a war galley to Altoman"s wedding, which was quite contrary to customs.
Altoman died some time after 1359, which was used as an opportunity by Vojislav who took the territories that Nikola had inherited, most likely leaving Nikola and Ratoslava with only a small part to hold. According to 19th-century historiography, Altoman was killed by Lazar Hrebeljanović.
Altoman"s province included Gruža, with the fortified town of Čestin, Rudnik, and the surrounding areas.
He had a son, Nikola Altomanović.
