Callistus II of Constantinople

Callistus II Xanthopoulos or Xanthopulus (Medieval Greek: Κάλλιστος Ξανθόπουλος; died after 1397) was a Byzantine Hesychast monk and spiritual writer who reigned as Ecumenical Patriarch of Constantinople in 1397. He was Patriarch through the reign of the Byzantine Emperor Manuel II Palaiologos, and through his short Patriarchal reign Constantinople was under siege by the Ottoman Sultan Bayezid I. Within the Orthodox Church, his memory is celebrated on 22 November.^[1][2]

Callistus II of Constantinople
Ecumenical Patriarch of Constantinople
Church	Church of Constantinople
In office	15 May 1397 – August [?] 1397
Predecessor	Antony IV of Constantinople
Successor	Matthew I of Constantinople
Personal details
Died	after 1397

His surname indicates that he was from the monastery of Xanthopoulos. The majority of Patriarchs in the 14th century were monks in the Hesychast tradition.^[3]

References

1. Κάλλιστος Β´ Ξανθόπουλος (in Greek). Ecumenical Patriarchate. Retrieved 2012-05-29.
2. Great Synaxaristes: (in Greek) Ὁ Ὅσιος Κάλλιστος ὁ Β’ Πατριάρχης Κωνσταντινουπόλεως. 22 Νοεμβρίου. ΜΕΓΑΣ ΣΥΝΑΞΑΡΙΣΤΗΣ.
3. J.M. Hussey. (1986). The Orthodox Church in the Byzantine Empire, Oxford University Press, p. 289.

Sources

• Hunter H.D., "Callistus II Xanthopulus, Patriarch of Constantinople", (subscription required)
• Hussey, J.M.. The Orthodox Church in the Byzantine Empire. Oxford: University Press, 1986.

Eastern Orthodox Church titles
Preceded by Antony IV	Patriarch of Constantinople 1397	Succeeded by Matthew I