The Thirteen Assyrian Fathers
According to Georgian church tradition, the Thirteen Assyrian (or Syrian) Fathers were monastic missionaries who arrived from Mesopotamia in the sixth century to reinforce the Christian faith and to set in motion the ascetic movement in Georgia. They are credited by Georgian church historians with the foundation of several monasteries and hermitages across the land. The number 'thirteen' appears to be largely symbolic, since the surviving tradition names as many as nineteen Assyrian monks active in Georgia during the same period.
The group is remembered as having been led by Saint John of Zedazeni, who according to the tradition gathered twelve disciples and brought them to Georgia. The Catholicos Evlavios and King Parsman are said to have received the fathers near Mtskheta, after which they settled for a time on Zedazeni Mountain before dispersing to preach and to found monastic communities in different regions. Stephen is listed among these chief fathers in the Georgian tradition.