oligarchy

Government by a few, especially by a small faction of persons or families.

Those making up such a government.

A state governed by a few persons.

A form of government in which the supreme power is vested in the hands of a small exclusive class; also, collectively, those who form such a class or body.

A form of government in which the supreme power is placed in the hands of a few persons; also, those who form the ruling few.