John XIII of Constantinople

John XIII (Greek: Ἰωάννης; died after 1320) was the Ecumenical Patriarch of Constantinople from 1315 to 1319.^[1] Prior to becoming the patriarch, he had served in the laity and his name was Glykys Melodos; he was sometimes referred to as John Glykys.^[2][3] One of his students was the Byzantine astronomer and scholar Nicephorus Gregoras.^[4]

John XIII of Constantinople
Ecumenical Patriarch of Constantinople
Church	Church of Constantinople
In office	12 May 1315 – 11 May 1319
Predecessor	Nephon I of Constantinople
Successor	Gerasimus I of Constantinople
Personal details
Born	?
Died	after 1320

References

1. Nicol, Donald M. (1993-10-14). The Last Centuries of Byzantium, 1261-1453. Cambridge University Press. p. 105. ISBN 978-0-521-43991-6.
2. Bryer, Anthony; Georghallides, G. S. (1993). The Sweet Land of Cyprus: Papers Given at the Twenty-fifth Jubilee Spring Symposium of Byzantine Studies, Birmingham, March 1991. Cyprus Research Centre. p. 382. ISBN 978-9963-0-8024-3.
3. Kiminas, Demetrius (2009-03-01). The Ecumenical Patriarchate. Wildside Press LLC. p. 36. ISBN 978-1-4344-5876-6.
4. Christian-Muslim Relations. A Bibliographical History. Volume 5 (1350-1500). BRILL. 2013-06-28. p. 133. ISBN 978-90-04-25278-3.

Eastern Orthodox Church titles
Preceded by Nephon I	Patriarch of Constantinople 1315–1320	Succeeded by Gerasimos I