An autarchy is a condition of absolute power, an autocratic government, or self-government.
A ruler who has absolute power can be called a dictator or despot.
Tyrant
𝐆𝐨𝐯𝐞𝐫𝐧𝐦𝐞𝐧𝐭 𝐢𝐧 𝐰𝐡𝐢𝐜𝐡 𝐭𝐡𝐞 𝐫𝐮𝐥𝐞𝐫 𝐢𝐬 𝐚𝐧 𝐚𝐛𝐬𝐨𝐥𝐮𝐭𝐞 𝐝𝐢𝐜𝐭𝐚𝐭𝐨𝐫 𝐢𝐬 𝐤𝐧𝐨𝐰𝐧
I believe the correct word would be a "monarch"
Yes Stalin was an autocratic ruler. He let power get into his head as he was supreme ruler.
unlimited.
Nobody this person would be called a dictator.
An autocratic ruler has complete and unchecked power over their country or territory. They have the authority to make decisions without consulting others and often suppress opposition or dissent. Their rule is characterized by centralized control and limited political freedom.
potentate
Potentate
Belarus is the only European country to have an autocratic government. There is no real explanation as to why a country has an autocratic government, other than the absolute ruler being power hungry.
unlimited
someone killed him
The Autocrat does
autocratic
An autocratic and tyrannical ruler is 'Despotic' from the Greek word Despotikos