Sir Watkin Williams-Wynn, 10th Baronet

Lt-Col. Sir Owen Watkin Williams-Wynn, 10th Baronet, CBE, KStJ (30 November 1904 – 13 May 1988), was a Welsh soldier and landowner.

[2] One of the few members of the surviving ancient Welsh nobility, 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.

He was second in command of his regiment while it was part of the British Expeditionary Force to France and was at the evacuation of Dunkirk, then was posted to the Far East.

[9] In 1939, Williams-Wynn married firstly, at Holy Trinity, Brompton, Margaret Jean, the daughter of Colonel William Alleyne Macbean, late Royal Artillery, and the Hon.

[2] His wife died in 1961,[11] and in 1968 Williams-Wynn married secondly Gabrielle Haden Matheson, the daughter of Herbert Alexander Caffin.