who lead the roundheads in the english civil war
Roundhead The Roundhead commander-in-chief of the first Civil War, Thomas Fairfax, remained a supporter of constitutional monarchy, as did many other Roundhead leaders such as Edward Montagu, 2nd Earl of Manchester and Robert Devereux, 3rd Earl of Essex; however, this party was outmanoeuvred by the more politically-adept Cromwell and his radicals, who had the backing of the New Model Army and took advantage of Charles' perceived betrayal of England by allying with the Scottish against Parliament.[citation needed]