After those incidents, a messenger from Constantinople arrived in Alexandria announcing the exile of the Patriarch Dioscorus, and the appointment of an Alexandrian priest named [[Proterius of Alexandria|Proterius]] as an imperial, i.e., alien/foreign/non-Egyptian, patriarch over Alexandria, with the approval of the emperor. He threatened whoever dared to show disobedience. The [[Melchite]] patriarch who was appointed by the emperor became surrounded by soldiers willing to punish those who might resist the imperial command.
In the year 457 Patriarch Dioscorus died in exile, and when the Copts heard that, they met with the clergymen and elected Timothy, the disciple of Dioscorus, to be the new Patriarch. This became a regular practice of the Coptic Church
until this day. This conflict (i.e. falsely accusing Oriental Orthodoxy of monophysitism) was caused by various reasons (including political ones and different interpretations of languages). It seperated Oriental Orthodox Churches from Eastern Orthodox Churches until the 20th century when some theologians of both churches sat together to find that both parties actually agree on many definitions including this point that seperated them for more than 15 centuries. <ref>[http://www.orthodoxunity.org/official.php Orthodox Unity - Statements from the Dialogue between the Eastern and Oriental Orthodox Churches]</ref>
Dioscorus I (died c. 454/457) in Asia Minor, [[September 11]], 454.<ref>[http://www.newadvent.org/cathen/05019a.htm Catholic Encyclopedia]</ref>