Arsen of Ulumbo

Venerable Arsen of Ulumbo was a Georgian monk of the 9th century, a contemporary of Patriarch Sergius of Jerusalem (842-844), and founder, with Michael, of a Georgian monastery on Mount Ulumbo in Asia Minor. The memorial books of the Holy Cross monastery at Jerusalem mention "our holy fathers Michael and Arsen, who built Ulumbo". It seems that they laid the foundation of Georgian monasticism on Ulumbo.

In the view of the scholar Pavle Ingorokva, one of those named, Arsen, is the disciple of Gregory of Khandzta. He came from Khandzta to Palestine, where he labored beside Makari of Leteti, then crossed to Asia Minor and settled on Mount Ulumbo. The Church of Georgia has counted the venerable Michael and Arsen among the saints as founders of the Georgian monastery on Ulumbo. Arsen is commemorated on 3 May (old style; 16 May new style).