You searched for: “heptarchy”
heptarchy (s) (nouns), heptarchies (pl)
A government by seven rulers; an aggregate of seven districts or petty kingdoms, each under its own ruler: "A heptarchy is one the seven kingdoms reckoned to have been established by the Angles and Saxons in Britain."
This entry is located in the following units: arch, -archic, -archical, -archism, -archist, -archy (page 3) hepta-, hept- (page 2)