Parker was the son of a Staffordshire attorney and educated at Trinity College, Cambridge. Returned for Derby as a Whig MP in 1705, he took a leading part in the prosecution of Dr Sacheverell in 1710. From 1710 to 1718 he was lord chief justice of Queen's Bench and was made Baron Parker in 1716. He removed to the lord chancellorship in 1718 and became earl of Macclesfield in 1721. In 1725 he was accused of peculation and forced to resign.
Subjects: British History.