Cloud of Witnesses
Venerable-Martyr Unknown

Monastic Martyr Macarius of Dionysiou

Also known as Macarius of Mount Athos

A monastic martyr of Dionysiou Monastery on Mount Athos, of whom no detailed life survives.

Feast Day
September 14
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Their life

A monastic martyr of Dionysiou Monastery on Mount Athos, of whom no detailed life survives.

His companions & kin
Venerable-Martyr
Monk-Martyr Telemachus
Venerable-Martyr
Venerable-Martyr Euthymius and Twelve Monks of Mount Athos
New Martyr
Venerable New Martyr Onuphrius of Hilandar
New Martyr
New Martyr Onuphrius of Gabrovo
New Martyr
New Martyr Romanus of Karpenisi
Hieromartyr
Hieromartyr Philip Metropolitan of Moscow
Notes

Honest stub; OCA gives no life details.

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