Is Govornment as an oligarchy a characteristic of Athens Sparta or both

Sparta,

•Athens had a Direct democracy, Aristocracy, Athenian democracy type government.

•Sparta had Oligarchy, Monarchy, Aristocracy, Republic, Diarchy types of government.

ol·i·gar·chyDictionary result for oligarchy

/ˈäləˌɡärkē/Submit

noun

a small group of people having control of a country, organization, or institution.

"the ruling oligarchy of military men around the president"