Paul IV, known as Paul the New, was Ecumenical Patriarch of Constantinople from 780 to 784. He had once opposed the veneration of icons but urged the calling of an ecumenical council

Ecumenical council

An ecumenical council is a conference of ecclesiastical dignitaries and theological experts convened to discuss and settle matters of Church doctrine and practice....

 to address the iconoclast controversy

Iconoclasm

Iconoclasm is the deliberate destruction of religious icons and other symbols or monuments, usually with religious or political motives. It is a frequent component of major political or religious changes...

. He resigned and retired to a monastery

Monastery

Monastery denotes the building, or complex of buildings, that houses a room reserved for prayer as well as the domestic quarters and workplace of monastics, whether monks or nuns, and whether living in community or alone .Monasteries may vary greatly in size – a small dwelling accommodating only...

 due to old age and illness. He was succeeded by Tarasios, who was a lay administrator at the time.

Paul the New is venerated as a saint

Saint

A saint is a holy person. In various religions, saints are people who are believed to have exceptional holiness.In Christian usage, "saint" refers to any believer who is "in Christ", and in whom Christ dwells, whether in heaven or in earth...

 in the Eastern Orthodox Church

Eastern Orthodox Church

The Orthodox Church, officially called the Orthodox Catholic Church and commonly referred to as the Eastern Orthodox Church, is the second largest Christian denomination in the world, with an estimated 300 million adherents mainly in the countries of Belarus, Bulgaria, Cyprus, Georgia, Greece,...

, and his feast day is celebrated on August 30.