1584-1643. English Parliamentarian, largely responsible for the Petition of Right 1628. As leader of the Puritan opposition in the Long Parliament from 1640, he moved the impeachment of Charles I's advisers Strafford and Laud, drew up the Grand Remonstrance, and was the chief of five members of Parliament Charles I wanted arrested 1642. The five took refuge in the City, from which they emerged triumphant when the king left London.