Historical Context
Stefan belonged to the Branković dynasty, one of the final Serbian ruling families of the medieval period. His father Đurađ Branković reigned from 1427 to 1456, the family's peak of power, though that power was constrained by Ottoman vassal status.
Stefan and his sister Mara resided at the court of Sultan Murad II; Mara had been given in marriage to the sultan. In April 1441, while Grgur governed his father's former estates as an Ottoman vassal following the 1439 Ottoman capture of Smederevo, Grgur was accused of treason. As a consequence, both brothers were blinded in 1441 at Edirne (Adrianople).
Rule and Legacy
After the death of his younger brother Lazar Branković, Stefan claimed the Serbian throne and ruled as despot from January 1458 to March 1459. His was a brief reign, and with the loss of the throne to Stjepan Tomašević the Branković dynasty ceased to rule.
Stefan spent his final years in exile, moving from Albania to Italy and settling in Friuli. He is venerated as a saint by the Serbian Orthodox Church and appears among the saints of the Serbian Orthodox Church as a royal saint of Serbia.
Family
Stefan was a son of Despot Đurađ Branković and Irene Kantakouzene. His siblings included Grgur Branković, who was blinded alongside him and later became a monk under the name German at Hilandar Monastery on Mount Athos; Mara Branković, wife of Sultan Murad II; Katarina, who married Ulrich II of Celje; and Lazar Branković.
In 1460 Stefan married Angelina Arianiti Komneni, born around 1440 in Berat, a daughter of Prince Gjergj Arianiti. Their children included Đorđe, who died in 1516 and later became Metropolitan of Ungro-Wallachia; Jovan, a titular despot who died in 1502; and Marija, who died in 1495 and married Boniface III, Marquess of Montferrat. A daughter Irene is recorded as having died in childhood.
After Stefan's death, Angelina retired to Krušedol Monastery in Fruška Gora and is herself venerated as Venerable Mother Angelina. Stefan, Angelina, Jovan, and Đorđe are together venerated as the Holy Branković Family by the Serbian Orthodox Church.
Veneration
Stefan's principal commemoration falls on October 9, the day of his repose. He is also venerated together with members of his family on December 10.
He is buried at Kupinovo, and is counted among the Eastern Orthodox royal saints of Serbia.