Historical Context
In eighteenth-century Transylvania the Habsburg authorities pressed Orthodox Christians to convert to Catholicism through the Unia, and the region was left without a resident Orthodox bishop. To provide pastoral leadership, John was ordained priest and consecrated bishop at Bucharest, since there was no bishop for Transylvania at the time.
In 1752 John took part in delivering a petition to Vienna that detailed Uniate abuses against Orthodox Christians in the lands west of Transylvania. He acted alongside fellow confessors Moses Macinic and Oprea, who are commemorated with him.
His imprisonment followed the same institutional pattern by which the Habsburg dynasty confined Orthodox clergy and laity — a pattern seen earlier in the case of the Transylvanian confessor Visarion Saraj (1714–1744), who was imprisoned at Deva and at Kufstein Fortress in Tyrol for speaking on behalf of Orthodoxy.