Background
De Grey was the third son of Thomas de Grey, Member of Parliament, of Merton, Norfolk, and Elizabeth, daughter of William Windham.
De Grey was the third son of Thomas de Grey, Member of Parliament, of Merton, Norfolk, and Elizabeth, daughter of William Windham.
He was educated at Trinity Hall, Cambridge, was called to the Bar, Middle Temple, in 1742, and became a King"s Counsel in 1758.
He served as Lord Chief Justice of the Common Pleas between 1771 and 1780. The de Grey family had been settled in Norfolk since the 14th century. Between 1761 and 1763 he was Solicitor General to Queen Charlotte. de Grey entered Parliament for Newport, Cornwall, in 1761, a seat he held until 1770, and then represented Cambridge University from 1770 to 1771, and held office under George Grenville and Lord Rockingham as Solicitor-General between 1763 and 1766 and under William Pitt the Elder, the Duke of Grafton and Lord North as Attorney-General between 1766 and 1771.
He failed to secure the conviction of Henry Sampson Woodfall for the publication of one of the Letters of Junius, which was deemed by the Crown to be a seditious libel.
The jury thought otherwise and Lord Mansfield declared a mistrial. In 1771 de Grey was appointed Lord Chief Justice of the Common Pleas, a post he held until 1780, when he was forced to resign due to ill health.
He had been knighted in 1766 and on his retirement in 1780 he was raised to the peerage as Baron Walsingham, of Walsingham in the County of Norfolk. Lord Walsingham married Mary, daughter of William Cowper, in 1743.
Lady Walsingham died in 1800.
Rex v Woodfall, 1770
Scott v. Shepherd 96 Engineering Republican 525 (KB 1773).
12th Parliament of Great Britain. 13th Parliament of Great Britain.