In 1497, Đorđe relinquished all titles and possessions to his brother, and decided to take monastic vows, adopting the name Maksim (Serbian Cyrillic: Максим).

His title and vast estates in the Kingdom of Hungary were left vacant, prompting Hungarian king Matthias Corvinus to find a suitable heir.

He opted for the only remaining male members of Branković family (Đorđe and his brother Jovan), inviting them to come to Hungary.

[10] His brother, despot Jovan, died in 1502 without a male heir, and King Vladislaus II of Hungary arranged a new marriage for Jovan′s widow Jelena Jakšić, who remarried nobleman Ivaniš Berislavić in 1504.

Maksim′s name was enlisted in a diptych of local Hierarchs, and some historians suggested that he became bishop in one of Wallachian eparchies, or even Metropolitan of Wallachia, but other researchers have pointed out that there is no direct confirmation for such assumption.

During those troubled times, his cult was founded in order to serve as a morale booster for the Serbs, who fought, together with the Hungarians and other Christians, against the invading Ottomans.

During the 16th century, monks of Krušedol monastery celebrated those members of the Branković dynasty, and hagiographies were written of Angelina and Maksim.

During the Austro-Turkish War (1716-1718), a Turkish army invaded Syrmia in 1716, captured Krušedol and burned the holy relics, shortly after the Battle of Petrovaradin.