Cyrus of Alexandria ( al-Muqawqis, ) was a Melchite patriarch of the see of Alexandria in the 7th century, one of the originators of monothelitism and the last Byzantine prefect of Egypt. He died in Alexandria on March 21, 642. Bishop of Phasis In 620 he was appointed Bishop of Phasis in Colchis. In 626 the Byzantine Emperor Heraclius, in the course of his Persian campaign, consulted him about a plan for bringing the Miaphysites of Egypt back to the Church, and to the support, of the empire. The monoenergist plan, suggested by Sergius, Patriarch of Constantinople, consisted of agreeing on the Chalcedonian principle that there were two natures of Christ, while practically nullifying it by saying he had only one energy, (ἓν θέλημα καὶ μία ἐνέργεια). Cyrus supported this formula after being reassured by Sergius that it was endorsed by Pope Honorius I in Rome and that it was opposed to neither the Fathers nor to Chalcedon and was destined to achieve great result. In return he was raised by Heraclius to the See of Alexandria in 630 in opposition to its Miaphysite Patriarch. Patriach of Alexandria Once a patriarch, Cyrus continued trying to unite Miaphysites and Chalcedonians around monoenergism, now evolving into monotheletism, the idea of one will. In a synod held at Alexandria in June 633, he proposed what is known as the Pact of Union, plerophoría (πληροφορία) or "Satisfactio", an agreement in nine articles, the seventh of which is a bold assertion of monothelitism. The Miaphysites (who were also called Theodosians or Severians) welcomed the agreement but remarked that Chalcedon was coming to them, not they to Chalcedon. Thousands of clergy, soldiers and ordinary people converted with Cyrus away from the miaphysite position at this time, but the change did not last. It was hoped that Pope Honorius I would be won over to the monothelete position. Cyrus attended another synod at Cyprus under Arkadios II in 636 along with 45 other senior clergy, at which he served as moderator and permitted Monothelite opponents to submit their case to the Emperor. When Cyrus received the Emperor's Monothelite response, the Ecthesis, Cyrus signed it in 637. Ultimately the monothelete compromise proved ineffective, as it was condemned at the Lateran Council of 649 and soon fell into discredit under the contemptuous name of . For 10 years, Cyrus severely persecuted the Egyptians, attempting to bring them, by force