exarchs

/IH0 G Z AA0 R K S/
noun
  1. 1

    In the Byzantine Empire, a governor of a distant province.

  2. 2

    In the Eastern Christian Churches, the deputy of a patriarch, or a bishop who holds authority over other bishops without being a patriarch.

  3. 3

    In these same churches, a bishop appointed over a group of the faithful not yet large enough or organized enough to constitute an eparchy or diocese.

Source: https://en.wiktionary.org/wiki/exarch, https://en.wiktionary.org/wiki/exarchs