What is an Oligarchy type of government?

Answer 1

From the Greek words that mean "rule by a few," it exists where the rulers are either wealthy or part of the family lineage or part of the military regime. Technically, there could be other "small segments" that might be in control, but these are the common ones.

Answer 2

An oligarchy is one where the power rests with just a few people who retain that power based on wealth, control of key resources, family ties, education, religious or military control, or royal titles. A plutocracy is a type of oligarchy. Typically power is passed down through families from generation to generation. They tend to retain power by tyranny and terror.