A despot.
Tyrant
A ruler who exercises power in a harsh, cruel manner. This type of person is frequently a dictator in an authoritarian state.
it means it proclaim the person who has the power.
Basically, the quote is saying that any person given complete power over something will always be corrupted by that power, leading in a corrupt manner. It's advocating checks and balances, and the division of power.
A person who has complete power and authority over a country is a dictator.
Tyrannical means having characteristics of a tyrant, being oppressive and controlling. It also means using power in a cruel manner.
The term despot is used to describe a person or ruler who have absolute power. In general, this person exercises this power in a cruel fashion, sometimes in oppressing ways.
A cruel ruler who holds absolute power. a ruler who uses their power voiently to get what they want. they might have secert spies.
Complete power held by a single person is called a dictatorship.
dictator
Autocrat
dictator