What was the most infamous/ruthless/heartless way in which someone close to the position of absolute power disposed the predecessor to become the new absolute position of power?

by [deleted]
estherke

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again.