Patriarch of Alexandria, Egypt in 188; he served for 43 years. Supported the catechetical school of Alexandria, appointing Origen as director of the school in 203; he later exiled Origen for being ordained without permission.
- 231 of natural causes
- Book of Saints, by the Monks of Ramsgate
- Catholic Encyclopedia
- Catholic Online
- Our Sunday Visitor’s Encyclopedia of Saints
- “Saint Demetrius of Alexandria“. Saints.SQPN.com. 6 January 2014. Web. 2 October 2014. <>