Cromwell murdered Charles I. When Charles II finally resumed the throne of England, he had Cromwell executed and Cromwell’s body was left hanging in public for a very long time.
What?
After the execution of King Charles I in 1649, Cromwell dominated the short-lived Commonwealth of England, conquered Ireland and Scotland, and ruled as Lord Protector from 1653 until his death from a combination of malarial fever and septicaemia in 1658.
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“When Charles II finally resumed the throne of England, he had Cromwell executed and Cromwell’s body was left hanging in public for a very long time.”
Cromwell died of illness, and was later “posthumously executed” - and then his body was left hanging.
During time of the English Civil War, it would be difficult to end up universally appreciated. One can surmise that that a “posthumous execution” could be an indicator of a lack of universal appreciation.
Cromwell was a great leader at a time England needed one. Those that would judge him by standards of today change very little, most especially their own ignorance - just as those who “executed” him changed little, from a practical standpoint.
I suspect neither England nor America would be the same without him - for better or worse.