Donald MacWilliam1 
He tried to gain the throne, but was killed at Mamgarvia Moor on Speyside.
Children of Donald MacWilliam
- Godfrey MacWilliam1 d. 1213
- Donald MacWilliam1 d. 15 Jun 1215
- unknown daughter MacWilliam1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
Godfrey MacWilliam1 
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
Donald MacWilliam1 
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
unknown daughter MacWilliam1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
Gospatrick MacWilliam, Lord of Airton1 
He gained the title of Lord of Airton.2
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
- [S16] Jirí Louda and Michael MacLagan, Lines of Succession: Heraldry of the Royal Families of Europe, 2nd edition (London, U.K.: Little, Brown and Company, 1999), table 12. Hereinafter cited as Lines of Succession.
Octreda (?)1
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
Alan, Lord of Allerdale1
Child of Alan, Lord of Allerdale
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
Cecilia MacWilliam1 
She was styled as Lady of Skipton.2 She was also known as Cecily.2
Child of Cecilia MacWilliam and William ‘le Gros’, Count of Aumale
- Hawise, Countess of Aumale+3 d. 11 Mar 1213/14
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
- [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 352. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume I, page 353.
William ‘le Gros’, Count of Aumale1 
William ‘le Gros’, Count of Aumale also went by the nick-name of William ‘le Gros’ (or in English, the Fat.)2 He was styled as Count of Aumale before 1130.1 He gained the title of Lord of Holderness before 1130.3 He fought in the Battle of the Standard in 1138, where he distinguished himself.2 He was styled as Earl of Yorkshire in 1138.2 In 1139 he founded the Abbey of Thornton.3 He fought in the Battle of Lincoln on 2 February 1140/41, where he was with King Stephen at his defeat.2 In 1150 he founded the Abbey of Meaux, instead of going on Crusade, which he had previously promised.2
Child of William ‘le Gros’, Count of Aumale and Cecilia MacWilliam
- Hawise, Countess of Aumale+3 d. 11 Mar 1213/14
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
- [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 352. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume I, page 353.
Amabel MacWilliam, Lady of Copeland1 
She gained the title of Lady of Copeland.2 From before 1162, her married name became de Lucy.
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 188. Hereinafter cited as Britain’s Royal Families.
- [S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 53. Hereinafter cited as The Complete Peerage, Volume XIV.
