D. M. Nicol (1994) questioned his maternity, suggesting Đurađ had a prior marriage to a daughter of John IV of Trebizond.

[citation needed] On 11 September 1429, Đurađ made a donation to Esphigmenou Monastery at Mount Athos.

[citation needed] The oldest sibling listed in the Massarelli document was Grgur Branković.

[citation needed] The Massarelli next names an older sister of Stefan, Mara Branković.

[citation needed] Both blind brothers seem to have been omitted from considerations as possible heirs to their father.

According to Fine, Stefan secured the throne by co-operating with his sister-in-law Helena Palaiologina, widow of Lazar.

[citation needed] Matthias Corvinus of Hungary and Stjepan Tomaš Kotromanić, King of Bosnia and father of Tomašević, dethroned Stefan on April 8, 1459.

[12] He gained (c. 1462) the Castle Belgrado, in the region of Friuli (northern Italy), where he lived with his family, until his death in 1476.

The couple had several children:[3] He is venerated as a Saint Stefan the Blind by the Serbian Orthodox Church.