ethnarch

/ˈɛθnɑːrk/
noun
  1. A ruler or leader of a specific ethnic group or province, especially in ancient or historical contexts.
    • Herod the Great was appointed ethnarch of Judea by the Romans.
    • Historians study the role of the ethnarch in maintaining order among diverse populations.
    • The ethnarch governed the region according to local customs and traditions.
Synonyms
What does "ethnarch" mean? | whatsthatwordmean | whatsthatwordmean