Background and Episcopate
In the world the saint bore the name Zebede and, according to the accounts preserved by the Church, was raised by Princess Ketevan, a daughter of King George VIII of Georgia, whose reign is dated to 1446–1466. This connection places his upbringing within the royal circles of late-medieval Georgia.
His tenure as bishop of Kumurdo is attested by an inscription preserved at the Kumurdo church, which records the petition, 'May the Lord have mercy on Zosimas, bishop of Kumurdo.' Kumurdo was a historic episcopal see in the south-western part of Georgia, later named among the principal sees of the modern Eparchy of Akhalkalaki, Kumurdo and Kars.