Kings
Definition:
Monarchs who reign over a kingdom, which is a major territorial unit or government ruled by a single person. The term may also refer to rulers of smaller entities and may include tribal rulers or rulers of petty states who are by tradition called "king." If kings rule over a territory that is contained within an empire, kings are typically subordinate to the emperor. Kings are always male; female rulers of kingdoms are called "queens."
Definition Source:
Getty AAT