Saint Nicephorus was a dignitary at the court of the Empress Irene (797-802). After embracing monasticism, he became widely known for his piety. He assumed the Patriarchal Throne of Constantinople in 806 and became a zealous defender of the holy Icons. In 815, the Iconoclast Emperor Leo the Armenian (813-820) exiled him to Prokonnis, where he fell asleep in the Lord in 828.
Saint Nicephorus left behind three writings against Iconoclasm.
In 846, the relics of Patriarch Nicephorus were returned to Constantinople and placed in the Great Church of Hagia Sophia for one day before being transferred to and enshrined in the Church of the Holy Apostles.
Troparion — Tone 3
Through your inspired confession, / you gained victory for the Church, holy Hierarch Nicephorus. / You suffered unjust exile / because of your reverence for the icon of God the Word. / Righteous Father, entreat Christ our God to grant us His great mercy.
Kontakion — Tone 4
Podoben: “Today You have shown forth...” / Since you have received from God in heaven / a crown of victory, glorious Nicephorus, / save those who faithfully honor you as a hierarch of Christ and a teacher.