Patriarch under Ottoman Rule
Niphon's patriarchate fell within the precarious period after the fall of Constantinople, when the Ecumenical throne depended on Ottoman sanction and the patronage of Orthodox princes beyond the empire. He served three separate terms, generally dated 1486–1488 and 1497–1498, with a third election in 1502.
His first elevation came with the support of Wallachia, and his second with the backing of the Wallachian ruler Radu the Great. Each tenure ended in deposition: he was banished in 1488, and after his second term he was again removed and exiled, the sources naming Adrianople as the place of his exile. When the Holy Synod elected him a third time in 1502, he declined to resume the office and did not return to the capital.
Reorganization of the Church in Wallachia
At the invitation of the Wallachian prince, who obtained his release from the Sultan, Niphon was named Archbishop of the Wallachians and undertook the reorganization of the Church in that land. His work there is the reason for his enduring veneration in Romania.
His relationship with the prince broke down over a marriage the saint judged uncanonical: the sources relate that he publicly rebuked and excommunicated the ruler for permitting a bigamous union, after which he departed from Wallachia.
Hidden Years and Repose on Athos
After his depositions Niphon withdrew to Mount Athos, dwelling at Vatopedi and then at the Monastery of Dionysiou (dedicated to Saint John the Forerunner). There he concealed his patriarchal dignity and accepted the humblest tasks of the community.
He reposed at Dionysiou in 1508 at about ninety years of age. The principal sources give August 11, 1508 as the date of his repose, while the OCA records September 3, 1508; in either reckoning his feast is kept on August 11.
Relics & Shrines
His relics are preserved at the Monastery of Dionysiou on Mount Athos, where a chapel bears his name. Portions of his relics — by tradition his skull and a hand — were sent to Wallachia early in the sixteenth century as a blessing for its people.
In Romania these relics were kept at the Curtea de Arges monastery, relocated to Craiova in 1949, and moved in 2009 to the Cathedral of the Ascension of the Lord at Targoviste.