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Callistus II of Constantinople

Patriarch of Constantinople

  • Fame43.0
  • Momentum7.4
  • Wikipedia140
Lived 1301–1397, aged 96
  • Wikipedia
    13 languages
    Cross-language footprint
  • Era
    1301–1397
    Aged 96
Summary
Updated 2026-08-04

Callistus II of Constantinople 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.

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Fame
Rising
43.0
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum7.4
Historical10.9
Source confidence60.0
Completeness25.0
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