Asterius of Petra was a convert from Arianism, and later the Bishop of Petra.

Asterius was one of the defenders of the Council of Nicæa and St. Athanasius.Vailhé, Siméon. "Petra." The Catholic Encyclopedia Vol. 11. New York: Robert Appleton Company, 1911 At the Council of Sardica, in 343,Milne, Mary K., "Rose-Red City, Half as Old as Time", CNEWA Asterius denounced Arianism, as a heresy. This led to his exile in Libya, at the command of Emperor Constantius II.Monks of Ramsgate. "Asterius". Book of Saints, 1921. CatholicSaints.Info. 2 August 2012

In 362, he was restored to his position of Bishop of Petra, by Emperor Julian.Shahan, Thomas. "Asterius." The Catholic Encyclopedia Vol. 2. New York: Robert Appleton Company, 1907. 29 September 2021 Asterius attended the Council of Alexandria,Holweck, Frederick George. A Biographical Dictionary of the Saints, B. Herder, 1924, p. 112 where he was chosen as the delegate to carry a letter to the Church of Antioch, where he provided a report of the proceedings at the council for the church leaders of Antioch. He died in Petra in 365.St. Asterius Catholic Online

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