in the development of art in Wales, as an early patron of landscape painting there, which was to become the largest area of artistic activity in Wales. He brought both Richard Wilson and Paul Sandby to his seat at Wynnstay, Sandby staying six weeks in the summer of 1770, giving lessons to the family as well as painting, on his first visit to Wales. The next year Sandby returned and from 21 August to 4 September 1771 he and Sir Watkin toured through the mountains of northern Wales. From the sketches made on the tour Sandby published twelve aquatint Views in North Wales in 1776, and five of his Views in Wales in 1777. Matching sets from South Wales came from his tours there with Sir Joseph Banks, who commissioned the whole series. A more ambitious tour together, to Italy, was planned but cancelled after Sir Watkin's second marriage. He supported the Concerts of Antient Music, and is caricatured by James Gilray in a depiction of King George III of Great Britain attending one he organised. Personal life He was married twice, first in April 1769 to Lady Henrietta Somerset, daughter of Charles Somerset, 4th Duke of Beaufort. As Williams-Wynn was a minor (under 21) he had to get Parliamentary permission by a special Act for the marriage settlement. Lady Henrietta died very shortly afterwards in July 1769. Secondly, in December 1771 he married Lady Charlotte Grenville, daughter of a former Whig Prime Minister. Together, they had three sons and two daughters, including: Henrietta Elizabeth Williams-Wynn (1767–1855), who married Thomas Cholmondeley, 1st Baron Delamere of Vale Royal. Sir Watkin Williams-Wynn, 5th Baronet (1772–1840), who married Lady Henrietta Antonia Clive, eldest daughter of Edward Clive, 1st Earl of Powis and Henrietta Clive, Countess of Powis, in 1817. Charlotte Williams-Wynn (1775–1819), who married Lt-Col William Shipley, MP for Flint Boroughs and St Mawes, and son of Very Rev. William Davies Shipley. Charles Williams-Wynn (1775–1850), who married Mary Cunliffe, daughter of Sir Foster Cunliffe, 3rd Baronet and Harriet Kinloch, in 1806. Sir Henry Williams-Wynn (1783–1856), who married Hon. Hester Frances Smith, daughter of Robert Smith, 1st Baron Carrington, in 1813. Sir Watkin died on 24 July 1789. Residence Sir Watkin commissioned Robert Adam to build 20–21 St James's Square in London which was constructed between 1771 and 1775. Sir Joshua Reynolds received several commissions from Sir Watkin, some of which remain with the