RIGHT HON. SIR HENRY W. W. WYNN. March 28. At Llanvoida, Shropshire, in his 73d year, the Right HOD. Sir Henry Watkin Williams-Wynn, Knt. K.C.B. and G.C.H. He was the third son of Sir Watkin Williams-Wynn, the fourth Baronet, by Charlotte, daughter of the Right Hon. George Grenville, and aunt of the second Duke of Buckingham ; and was brother to Sir Watkin the late Baronet, who died in 1840, and also to the Right Hon. Charles Watkin Williams-Wynn, who represented Montgomeryshire for nearly fifty years previous to his death in 1850. Sir Henry was born March 16, 1783, and entered the Foreign Office as a clerk in Jan. 1799. He had scarcely been two years in his clerkship when he was chosen by the late Lord Grenville, who was then at the head of the Foreign Office, as private secretary, to which appointment was added that of precis writer. In April, 1803, he was sent as Envoy Extraordinary to the Elector of Saxony, whence he returned in April, 1807. In the previous January he had been elected to parliament for Midhurst, but he lost his seat by the dissolution in the same year. He did not resume his diplomatic functions till Feb. 1822, when he was appointed Envoy Extraordinary and Minister Plenipotentiary in Switzerland; whence he was transferred in Feb. 1823, to Sluttgard; and in Sept. 1824, to Copenhagen, when he was sworn of His Majesty's Privy Council. He discharged the delicate and difficult duties of British representative at Copenhagen with great tact and ability for nearly thirty years, and returned from his post only in the early part of 1853. Sir Henry received the honour of knighthood, in 1831, from King William the Fourth, who also nominated him a Grand Cross of the Hanoverian Guelphic Order. He was nominated a Knight Commander of the Bath (of the Civil division) in 1851. He married, Sept. 30, 1813, the Hon. Hester Frances Smith, sixth daughter of Robert first Lord Carrington, by whom he had a family of three sons and four daughters, one of whom is married to her cousin, the present Baronet, of Wynnstay.
The Gentlemans Magazine 1856
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Sir Henry Watkin Williams-Wynn, GCH, KCB (16 March 1783 ? 28 March 1856) was a British diplomat.
Williams-Wynn was a son of Sir Watkin Williams-Wynn, 4th Baronet and his second wife, Charlotte, the eldest daughter of George Grenville. He entered the Foreign Office as a clerk in January 1799, when his uncle, William Grenville, 1st Baron Grenville, was its head, and early in 1801, was appointed Grenville's private secretary and précis writer. From April 1803 to October 1806, he was envoy-extraordinary to Saxony, and his services were rewarded with a pension of £1500 a year. For a few months (January to April 1807) he sat in the Commons for Midhurst on the influence of Lord Carrington, whose daughter, Hester Frances Smith (died 5 March 1854), he married on 30 September 1813; the couple had three sons and three daughters. Wynn's political career came to nothing, however, and, with his family in opposition to the government, his diplomatic career also foundered. His family's alliance with Lord Liverpool eventually led to Wynn being made envoy-extraordinary and minister-plenipotentiary to Switzerland in February 1822, an appointment sharply criticized in both Houses of Parliament. He was transferred to a like position at the court of Württemberg in February 1823. In September 1824, he was sent in a similar capacity to Denmark, and remained there until early in 1853. He was sworn of the Privy Council on 30 September 1825, made a GCH in 1831 and a KCB on 1 March. He died on 28 March 1856 at Llanroida, Shropshire.

• Married: 30 Sep 1813

1. Charlotte Henrietta Williams-Wynn b: 1814
2. Grenville Watkin Williams-Wynn b: 1816
3. Katharine Williams-Wynn b: 1817
4. Arthur Watkin Williams-Wynn b: 1819
5. Henry Bertie Watkin Williams-Wynn b: 23 Sep 1820
6. Mary Emily Williams-Wynn b: 1827

1. Title: Turner-Thomas Genealogy
   Author: Arthur Edwyn Turner-Thomas
   Publication: Turner-Thomas Genealogy.ged
2. Title: Descendants of Charles Seymour, 2nd Lord Seymour of Trowbridge
   Publication: http://www.angelfire.com/realm/gotha/Part_h8.htm
3. Title: Pedigrees of Anglesey and Carnarvonshire Families
   Author: John Edwards Griffith
   Publication: Horncastle, England: W.K. Morton, 1914
4. Title: The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant
   Author: Editor: G.E. Cokayne, with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden
   Publication: St. Catherine Press, 29 Great Queen St, Kingsway, W.C. 1959
5. Title: The Blood Royal of Britain, Being a Roll of the Living Descendants of Edward IV and Henry VII, Kings of England & James
   Author: Melville Henry Massue Ruvigny et Raineval, Marquis of Ruvigny & Raineval
   Publication: Originally published: London : T. C. & E. C. Jack, 1903.
   Genealogical Publishing Com, 1994, ISBN 0806314311
6. Title: Wynnstay and the Wynns
   Author: Askew Roberts
   Publication: Woodall and Venables; Oswestry: 1876
   Page: p.v, vi