William, 5th Earl of Mar1 
He succeeded as the 5th Earl of Mar [S., c. 1115] before 7 February 1243/44.1 He was Chamberlain to King Alexander III of the Scots circa 1252.1 He was member of the Council of Regency of Scotland circa 1255.1 He held the office of Chamberlain of Scotalnd between 1262 and 1264.1 He held the office of Sheriff of Dunbartonshire between 1264 and 1266.1
Child of William, 5th Earl of Mar and Elizabeth Comyn
- Donald, 6th Earl of Mar+1 d. a 25 Jul 1297
- [S37] BP2003 volume 2, page 2603. See link for full details for this source. Hereinafter cited as. [S37]
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume V, page 576. Hereinafter cited as The Scots Peerage.
- [S323] Sir James Balfour Paul, The Scots Peerage, volume V, page 577.
Elizabeth Comyn1 
Child of Elizabeth Comyn and William, 5th Earl of Mar
- Donald, 6th Earl of Mar+2,1 d. a 25 Jul 1297
- [S37] BP2003 volume 2, page 2603. See link for full details for this source. Hereinafter cited as. [S37]
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume V, page 576. Hereinafter cited as The Scots Peerage.
Duncan, 4th Earl of Mar1 
He succeeded as the 4th Earl of Mar [S., c. 1115] before 29 August 1229.1 In 1237 he was witness to the Anglo-Scottish agreement sealed in the autumn 1237.1
Child of Duncan, 4th Earl of Mar
- William, 5th Earl of Mar+1 d. fr 16 May 1291 – 12 Nov 1291
- [S37] BP2003 volume 2, page 2603. See link for full details for this source. Hereinafter cited as. [S37]
Morgund Mac Gylocher, 2nd Earl of Mar1 
He succeeded as the 2nd Earl of Mar [S., c. 1115] after 1133.2 Before 1152 he was witness to a charter of King David I and his son Henry to Dunfermline.2
Children of Morgund Mac Gylocher, 2nd Earl of Mar and Agnes (?)
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume VIII, page 398. Hereinafter cited as The Complete Peerage.
- [S37] BP2003 volume 2, page 2603. See link for full details for this source. Hereinafter cited as. [S37]
Agnes (?)1
Children of Agnes (?) and Morgund Mac Gylocher, 2nd Earl of Mar
- [S37] BP2003 volume 2, page 2603. See link for full details for this source. Hereinafter cited as. [S37]
William Comyn, Earl of Buchan1 
He founded the Abbey of Deer in Buchan.1 He held the office of Justiciar [Scotland].1 He gained the title of Earl of Buchan, in right of his wife.1
Children of William Comyn, Earl of Buchan and Sarah FitzHugh
Children of William Comyn, Earl of Buchan and Margaret, Countess of Buchan
- Elizabeth Comyn+3 d. 1267
- Alexander Comyn, 6th Earl of Buchan+1 d. b 6 Apr 1290
- Lady Idoine Comyn+2
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 374. Hereinafter cited as The Complete Peerage.
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Margaret, Countess of Buchan1 
She succeeded as the 5th Countess of Buchan [S., c. 1115] before 1199.1 From before 1210, her married name became Comyn.1
Children of Margaret, Countess of Buchan and William Comyn, Earl of Buchan
- Elizabeth Comyn+ d. 1267
- Alexander Comyn, 6th Earl of Buchan+1 d. b 6 Apr 1290
- Lady Idoine Comyn+2
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 374. Hereinafter cited as The Complete Peerage.
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
Richard Comyn, Lord of Tynedale 
He gained the title of Lord of Tynedale.
Child of Richard Comyn, Lord of Tynedale and Hextilda (?)
- William Comyn, Earl of Buchan+ d. 1233
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 186. Hereinafter cited as Britain’s Royal Families.
Hextilda (?) 
Her married name became Comyn. After her marriage, Hextilda (?) was styled as Countess of Atholl between 1164 and 1166.
Child of Hextilda (?) and Richard Comyn, Lord of Tynedale
- William Comyn, Earl of Buchan+ d. 1233
Child of Hextilda (?) and Malcolm, 2nd Earl of Atholl
- Henry, 3rd Earl of Atholl+4 d. b Jan 1210/11
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 181. Hereinafter cited as Britain’s Royal Families.
- [S11] Alison Weir, Britain’s Royal Families, page 186.
- [S11] Alison Weir, Britain’s Royal Families, page 180.
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 305. Hereinafter cited as The Complete Peerage.
Uchtred FitzWaldeve
He was also known as Huctred of Tynedale.2 He was also known as Uctred of Tynedale.3 He was also known as Waltheof of Tynedale.3
Child of Uchtred FitzWaldeve and Bethoc of Scotland
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 186. Hereinafter cited as Britain’s Royal Families.
- [S11] Alison Weir, Britain’s Royal Families, page 181.
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 304. Hereinafter cited as The Complete Peerage.