The reason why the rule of Ivan makes him an absolute monarch was that His violent temper.
This was becasue he was known to make use of brutal force against the elemenst that stood as an opponent to him and the things that he wanted to do.
He was said to have lived a life of abuse and neglect as a achild. Hence wen he claimed the throne as the Tsar, he went ahead to destroy all of the peopel that he saw as his enemies.
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