Colonel Sir Robert William Herbert Watkin Williams-Wynn, 9th Baronet, KCB, DSO (3 June 1862 – 23 November 1951) was a Welsh soldier and landowner.
[2] One of the few members of the surviving ancient Welsh nobility, at the time of his death Williams-Wynn was the closest certain heir of the House of Aberffraw, the former ruling family of Gwynedd and Wales, who were deposed in the English Conquest of 1282.
[5] After arrival in South Africa, he saw active service in the Transvaal and the Orange River Colony and was on the staff of Lord Chesham.
[2] He was appointed Honorary Colonel of the 61st (Carnarvon & Denbigh Yeomanry) Medium Regiment, Royal Artillery on 7 February 1923.
He was also a Justice of the Peace for Denbighshire and Flintshire and was Master of the Flint and Denbigh Foxhounds for fifty-eight years, from 1888 to 1946.