Patriarch Joannicius III of Constantinople

Joannicius III , born Ioannis Karatzas, was Archbishop of Pe and Patriarch of the Serbs from 1739 to 1746 and Ecumenical Patriarch of Constantinople from 1761 to 1763. The ordinal number of his title is III both for his office as Patriarch of Pec and of Constantinople.

Joannicius was born circa 1700 from the influential Byzantine and Phanariote Karatzas family. He became a deacon serving Patriarch Paisius II and later he was appointed protosyncellus.

Source: Wikipedia