His Holiness Theodosius was Pope of Alexandria between 535 and 567. Due to the turmoils of the 451 split of the Orthodox Church after the Council of Chalcedon, he has been the last Patriarch of Alexandria of the Orthodox united church of Alexandria, before the followers of what today is the Eastern Orthodox Church of Alexandria elected Patriarch Paul in his place in 536. It has been suggested that Pope of the Coptic Orthodox Church be merged into this article or section. ... Events Beginning of the Western Wei Dynasty in China. ... Events Livva I succeeds Athanagild as king of the Visigoths. ... Events April 7 - The Huns sack Metz June 20 - Attila, king of the Huns is defeated at Troyes by Aëtius in the Battle of Chalons. ... It has been suggested that this article or section be merged into Eastern Christianity. ... The Council of Chalcedon was an ecumenical council that took place from October 8 to November 1, 451, at Chalcedon (a city of Bithynia in Asia Minor), today part of the city of Istanbul on the Asian side of the Bosphorus and known as the district of Kadıköy. ... This article is about the city in Egypt. ... The Orthodox Church of Alexandria is one of the autocephalous Eastern Orthodox Churches. ... Paul served as Orthodox Patriarch of Alexandria between 537 and 540. ... Events June 8 - St. ...