hierocrat

Example:The autocrat had absolute power and made all the important decisions.

Definition:A person who holds or seeks power unilaterally without regard for the rights and opinions of others, especially in a nation or other political unit.

Example:The dictator was overthrown by a popular uprising against his oppressive rule.

Definition:A ruler who has complete and unlimited power over a government and its people, often gained by force and not in accordance with established laws.

Example:The despot was known for his harsh treatment of his subjects.

Definition:A person who rules with absolute power and is not accountable to the public or to any laws, often for the benefit of themselves or their clique.