Claim: Thomas Fairfax, also known as Sir Thomas Fairfax, was an English nobleman, peer, politician, general, and Parliamentary commander-in-chief during the English Civil War who also opposed the prerogative of the Crown and petitioned King Charles.
Evidence: Thomas Fairfax, 3rd Lord Fairfax of Cameron (17 January 1612 – 12 November 1671), also known as Sir Thomas Fairfax, was an English nobleman, peer, politician, general, and Parliamentary commander-in-chief during the English Civil War. The Fairfaxes, father and son, though serving at first under King Charles I, were opposed to the arbitrary prerogative of the Crown, and Sir Thomas declared that "his judgment was for the Parliament as the king and kingdom's great and safest council". When Charles endeavoured to raise a guard for his own person at York, intending it, as the event afterwards proved, to form the nucleus of an army, Fairfax was employed to present a petition to his sovereign, entreating him to hearken to the voice of his parliament, and to discontinue the raising of troops.