Cloud of Witnesses
Venerable (Monastic) 13th century

Venerable Cosmas the Bulgarian of Zographou

Also known as Cosmas of Mount Athos

A Bulgarian monk of Zographou Monastery who pursued hesychast asceticism and spiritual obedience.

Feast Day
September 21
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Their life

A Bulgarian monk of Zographou Monastery who pursued hesychast asceticism and spiritual obedience.

His companions & kin
Venerable (Monastic)
Venerable Gabriel of Lesnovo
Venerable (Monastic)
Venerable Sylvester of the Kiev Caves
Hierarch
Eustathius I Archbishop of Serbia
Venerable (Monastic)
Venerable Aquila of the Kiev Caves
Venerable (Monastic)
Venerable Gregory of Ochrid
Venerable (Monastic)
Venerable Paul of Obnora
Notes

Distinct from Cosmas of Zographou the anchorite commemorated Sep 22.

Sources: OCA Synaxarion (oca.org), Lives of the Saints