Sparta had a mixed government with a dual monarchy, meaning they had two kings.

Was Sparta and Athens a monarchy?

Sparta was a city in Greece in which the form of the kingdom in the form of joint authority was preserved. Spartan political system was a combination of monarchy (kings), oligarchy (Gerousia) and democracy (ephoroi, ephors).

Was Sparta a dual monarchy?

Sparta in time developed a system of dual kingship (two kings ruling at once). Their power was counter-balanced by the elected board of ephors (who may only serve a single one-year term). There was also a Council of Elders (Gerousia), each member of which was over the age of 60 and could serve for life.