Peter Charles Drummond-Hay1
He was given the name of Peter Charles Hay-Drummond-Hay at birth.2 He was educated at Eton College, Windsor, Berkshire, EnglandG.2 He was educated at Trinity College, Cambridge University, Cambridge, Cambridgeshire, EnglandG.2 In 1975 his name was legally changed to Peter Charles Drummond-Hay.2 He lived in 2003 at 86 Rowayton Avenue, Rowayton, Connecticut, U.S.A.G.2
Children of Peter Charles Drummond-Hay and Lady Bettina Mary Lindsay
- Tamsin Rachel Drummond-Hay2 b. 17 May 1977
- Alice Ruth Drummond-Hay2 b. 15 Jul 1980
- Lily Iona Drummond-Hay2 b. 21 Jan 1983
- Thomas Auriol Leo Drummond-Hay2 b. 20 Nov 1989
Charles Gerard Mackworth-Young1
He was educated at Eton College, Windsor, Berkshire, England.2 He graduated from Magdalene College, Cambridge University, Cambridge, Cambridgeshire, England, with a Master of Arts (M.A.)2 He was Consultant Physician at Charing Cross Hospital, London, England.2 He was Consultant Physician at Chelsea and Westminster Hospital, London, England.2 He was Consultant Physician at King Edward VII Hospital, Westminster, London, England.2 He graduated from St. Bartholomew’s Hospital Medical School, London, EnglandG, with a Doctor of Medicine (M.D.)2 He was appointed Fellow, Royal College of Physicians, London (F.R.C.P.)2 He lived in 2003 at 18 The Chase, London, England.2 He was appointed Commander, Royal Victorian Order (C.V.O.) in 2020.3
Sir Robert Erskine of that Ilk1 
He held the office of Scottish Ambassador to England.3 He held the office of Constable of Stirling Castle.3 He held the office of High Chamberlain of Scotland between 1350 and 1357.3 He held the office of High Chamberlain of Scotland from 1363 to 1364.3 In 1368 he had a royal charter granting Alloa to himself in exhcnage for Strathgartney.3
Children of Sir Robert Erskine of that Ilk and Beatrice de Lindsay
- [S37] BP2003 volume 1, page 951. See link for full details for this source. Hereinafter cited as. [S37]
- [S9285] George Montagu, “re: Montagu Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 25 Feb 2021. Hereinafter cited as “re: Montagu Family.”
- [S37] BP2003. [S37]
Sir David de Lindsay1 
He held the office of Regent of Scotland in 1255.1 He held the office of High Chamberlain [Scotland] in 1256.1
Children of Sir David de Lindsay and Margaret (?)
- [S37] BP2003 volume 1, page 951. See link for full details for this source. Hereinafter cited as. [S37]
Sir David de Lindsay of Brenevil1
In 1233 he had a charter of the Byres from Gilbert, Earl of Pembroke.1 He held the office of Justiciary [Scotland] between 1243 and 1249.1 In 1244 he had a charter of Chirden in Tyndale from Margaret, Countess of Pembroke.1
Children of Sir David de Lindsay of Brenevil
- Sir David de Lindsay+1 d. 1268
- Sir John de Lindsay+1
- [S37] BP2003 volume 1, page 951. See link for full details for this source. Hereinafter cited as. [S37]
William de Lindsay1
Child of William de Lindsay
- [S37] BP2003 volume 1, page 951. See link for full details for this source. Hereinafter cited as. [S37]
