In the Byzantine Empire, an exarch (/ˈɛksɑrk/; Ancient Greek: ἔξαρχος exarchos) was a governor with extended authority over a province at some distance from the capital Constantinople.
In the Byzantine Empire, an exarch (/ˈɛksɑrk/; Ancient Greek: ἔξαρχος exarchos) was a governor with extended authority over a province at some distance from the capital Constantinople.