You searched for: “heptarchs”
heptarch (s) (nouns), heptarchs (pl)
A ruler of one of seven divisions of a country: "Alex was one of the heptarchs of the nations heptarchy."
This entry is located in the following units: arch, -archic, -archical, -archism, -archist, -archy (page 3) hepta-, hept- (page 2)