Domninus was
Egyptian by birth; details of his early life and family are limited. His career illustrates the integration of native
Egyptians into the senior officer corps of the
Roman and
Byzantine military. He is mentioned by the court historian
Agathias, who records that Domninus commanded cavalry units during the
Lazic War in the
Caucasus.
Agathias's mention places Domninus within this theater, though the exact dates of his service are not detailed in surviving texts. == Significance ==