Oliver Cromwell (1599-1658) was an accomplished cavalry commander, then head of Parliament's New Model Army, and finally Lord Protector of England, Scotland, and Ireland. The latter title was awarded to Cromwell for life after the bloody conclusion of the English Civil Wars (1642-1651) and the execution of King Charles I of England (r. 1625-1649).
This is a companion discussion topic for the original content at https://www.worldhistory.org/Oliver_Cromwell/.