'''Proterius of Alexandria''' (d. [[457]]) [[Council of Chalcedon|Chalcedonian]] [[List of Patriarchs of Alexandria|Patriarch of Alexandria]] ([[451]]-[[457]]). HeElected wasas electedsuccessor toof replacePatriarch [[Dioscorus I of Alexandria]], who was deposed from the patriarchate at the [[Council of Chalcedon]] [Cf. Evagrius Scholasticus, ''Ecclesiastical History'' (AD 431-594), Book 2, chapter 5]. Due to his [[Council of Chalcedon|Chalcedonian]] theology he was not popular in Alexandria. His accession marked the beginning of the [[Schism|Schism (Split) of 451]] between the [[List of Coptic Popes|Coptic]] and the [[List of Orthodox Patriarchs of Alexandria|Eastern Orthodox]] patriarchs. In [[457]] the [[Monophysitism|monophysite]] party in Alexandria elected [[Pope Timothy II of Alexandria|Timothy II Aelurus]] as patriarch. Proterius was subsequently murdered [Cf. Evagrius, 2, 8].
