Ascetic Life
Domnica is remembered for a life of severe asceticism. The anchor account relates that she built a small hut, wept continually in prayer, and confined her diet to lentils. This small dwelling distinguishes her physically from Marana and Kyra, who, by the surviving descriptions, lived in an open-air stone enclosure with no roof or shelter; Domnica's hut is described as a dwelling outside their main enclosure.
She is consistently named as a companion of the sisters Marana and Kyra, ascetics of Beroea (also called Veria or Berea) in Syria. According to the Dictionary of Christian Biography, the companions who shared in the sisters' way of life dwelt in a small hovel nearby and received spiritual encouragement through a window, the sisters themselves keeping their own enclosure sealed.