Politician. The second son of Sir Watkin Williams Wynn, 4th Baronet, and his second wife Charlotte Grenville. He was educated at home by a tutor, the Revd Robert Nares, and later at Westminster (adm. 1784) and Christ Church, Oxford (matric. 1791, BA 1795, MA 1798, DCL 1810). Entered Lincoln’s Inn in 1795 and was called to the Bar in 1798. He married Mary Cunliffe, daughter of a baronet, in 1806. Wynn had excellent family and political connections as his maternal grandfather was the Prime Minister George Grenville (1712–1770; DNB). He served as an MP for Old Sarum (1797–1799) and for Montgomeryshire (1799–1850). From 1806–1807, he served in the Ministry of Talents (led by his uncle Lord Grenville) as Under Secretary to the Home Office, and secured a pension for Southey, which he described as ‘the only benefit I reap from 12 months of office’. From 1822–1828, he held a cabinet post as President of the Board of Control. Wynn met Southey at Westminster and the two remained friends for rest of their lives. He contributed to The Flagellant (1792) under pseudonyms which included ‘St Pardulph’. Wynn (who was not personally wealthy) gave Southey an annuity of £160 from 1797, and Southey dedicated Madoc (1805) to him.