Peter Osborne, Esquire, (1521–1592) was Keeper of the Privy Purse to King Edward VI, at a time when great constitutional changes affected the management of public finance. Of reformist sympathies in religion, his career was in abeyance during the reign of Queen Mary but regained momentum as Remembrancer in the Exchequer under Elizabeth, working usually to his marital kinsman Lord Burghley, and he sat in seven parliaments between 1559 and 1589.