Oliver Cromwell

Oliver Cromwell, who was nicknamed "Old Ironsides," was a regicidal dictator who seized control of power over Great Britain in the mid-1600's after the English Civil War. He was the least popular ruler to have ever reigned over Great Britain and banned anything that was seen as "fun," such as Christmas celebrations. His death in 1658 ended his reign when his son refused to follow in his footsteps.