From the Telegraph and Times of 16 November 2013: Prof G.P.T. Barclay and Mrs P.M. Knatchbull-Hugessen - The marriage took place on Friday, Nov 8, 2013, between George Barclay and Anna Rose Knatchbull-Hugessen.
Anna Rose (b 1940 reg Q2 Cork) d of Maj Henry McClintock Bunbury BRAMWELL (gs of 2nd Baron RATHDONNELL) and Carroll LEAHY. She m 1st 1970 (as his 2nd w) Lord James Charles CRICHTON-STUART (1935-82) s of the 5th Marquess of BUTE and his w a dau of the 8th Earl of GRANARD. They had three sons. She m 2nd 1992 Peter Merrick KNATCHBULL-HUGESSEN (1915-2008), scion of the BRABOURNE barons.
Richard L posted news of Peter Knatchbull-Hugessen's death in 2008:
https://groups.google.com/forum/?fromgroups#!searchin/peerage-news/knatchbull-hugessen|sort:date/peerage-news/2XxwIexpHPQ/i1Gwrm8Kfn0J