The clan/family name for Mary, wife of Sir William Keith, has never been identified. Barring a source to the contrary, he could not have also married a Marjory Fraser, whose birth and death years are the same as Mary, whom someone conjectures was a Hamilton.

BOOK

• Anderson, J. and Paul, J.B. (1907) “Gordon, Earl and Marquess of Huntley, and Duke of Gordon,” in J.B. Paul (ed.) The Scots Peerage: Founded on Wood’s Edition of Sir Robert Douglas’s Peerage of Scotland; Containing an Historical and Genealogical Account of the Nobility of that Kingdom. Edinburgh, Scotland: David Douglas, pp. 506–562. Available at: Google Books, pp. 521-522:—
  • I. SIR ALEXANDER SETON, eldest son of Sir Alexander Seton and Elizabeth Gordon, succeeded his father before 3 April 1441. He is mentioned on record in 1427 and 1438 in connection with his first marriage. It was probably he who in 1435 was one of the Scottish gentlemen who attended the Princess Margaret of Scotland on her voyage to France to marry the Dauphin. The Chronicler describes him as 'Master of Gordon.{Fordun à Goodall, ii., 485.] He is styled Alexander of Master of Gordon, Lord of Tullibody, when, on 20 February 1439-40, he stood up in a General Council at Edinburgh and protested that none of the writs made by his mother or grandfather should prejudice himself. But in a charter three days later, 23 February 1439-40, relating to the same matter, he is designed Sir Alexander Seton of Tullibody, and heir of Elizabeth Gordon, late lady of that Ilk, when he confirmed an excambion made between the deceased Sir William Keith and Margaret Fraser (his grand-parents) and the deceased William Lindsay, Lord of Byres, of certain lands in exchange for Dunottar.{Third Rep. Hist. MSS. Com., App. 405, 409; Reg. Mag. Sig., 13 May 1440.] On 3 April 1441 Sir Alexander Seton resigned his lands in the King's hands and received a charter to himself and Elizabeth, his spouse, of the lordships of Gordon, co. Berwick, and Strathbogie, co. Aberdeen, the lands of Aboyne, Glentanner, and Glenmuick, all in Aberdeenshire, with Panbride in co. Forfar, to be possessed by Sir Alexander in liferent, and by George of Seton their son in fee, and the lawful heirs-male of his body.{Acta Parl. Scot., ii. 56, 57.]
  • The lands of Aboyne, Glentanner, Glenmuick, and Panbride had belonged to his mother, through his grandmother Elizabeth Keith, ‘Lady of Aboyne,’ and a dispute arose between Sir Alexander and his kinsman Sir William Keith, the Marischal of Scotland. The parties and their friends. met at Cluny on 1 August 1442, where an amicable arrangement was come to, and Seton bound himself to fulfil a contract (date not stated) formerly made between his father, his mother, and himself on one side, and Sir William Keith and his wife Mary on the other side.{Reg. Mag. Sig., 30 October 1444.] About the same period, or in 1414, he made a friendly arrangement with James Forbes, younger of that Ilk, as to certain lands.{Antiq. Aberdeen, etc., iv. 341.] He had also a grant for life of the barony of Kinedward from Alexander, Earl of Ross and Lord of the Isles.{Reg. Epis. Aberdonensis, i. 241.]
    • NOTABLY, the name of Mary mention as Sir William's wife, but her clan/family name is not given here.

-----------------------------------------------------------------------------------------------------------------------------------------

• Sir William Keith[1]
• M, #109265, d. October 1444
• Last Edited=25 Nov 2012
• Sir William Keith was the son of Sir Robert Keith.2 He and Mary Hamilton obtained a marriage license on 26 April 1414. He died in October 1444.[1]
• He was invested as a Knight before 1 April 1426.[1]
• Children of Sir William Keith and Mary Hamilton
  • Sir Robert de Keith+2 d. b 22 Sep 1446
  • William de Keith, 1st Earl Marischal+1 d. fr 10 Dec 1482 - 1483
  • John Keith[2]
  • Alexander Keith[2]
  • Marion Keith[2]
  • Elizabeth Keith+2
• Citations
• 1.[S37] Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003), volume 3, page 3426. Hereinafter cited as Burke's Peerage and Baronetage, 107th edition.
• 2.[S37] Charles Mosley, Burke's Peerage and Baronetage, 107th edition, volume 2, page 2195.
• 3.[S37] Charles Mosley, Burke's Peerage and Baronetage, 107th edition, volume 2, page 1642.
• From: http://www.thepeerage.com/p10927.htm#i109265 _________________________
• Sir William Keith, 1st Great Marischal1
• M, #3633, d. before 1463
• Father Sir Robert Keith, Great Marischal d. b 20 Jul 1430
• Mother (Miss) Troup
• Sir William Keith, 1st Great Marischal and Mary Hamilton obtained a marriage license on 26 April 1414; Dispensation. Sir William Keith, 1st Great Marischal died before 1463.
• Family Mary Hamilton d. b Aug 1442
• Children
  • Marion de Keith d. a 1450
  • Egidia Keith+ b. c 1429, d. a 1473
  • William Keith, 2nd Earl Marischal+ b. b 1442, d. b 1483
• Citations
• [S231] Unknown author, Wallop Family, p. 465.
• From: http://our-royal-titled-noble-and-commoner-ancestors.com/p121.htm#i... ___________________
• A Genealogical History of the Dormant: Abeyant, Forfeited, and Extinct ... By Sir Bernard Burke
• https://books.google.com/books?id=K3MaAAAAYAAJ&pg=PA303&lpg=PA303#v...
• Pg.303
• This great and illustrious family has held from the earliest ages the dignified post of Great Marischals of Scotland. With out attempting to trace the line of hereditary Great Marischals of Scotland from the year 1010, when Robert, the direct ancestor of this family was invested with that dignity by King MALCOM II., we will commence with Sir WILLIAM KEITH, Great Marischal of Scotland, the 11th in direct descent from the founder of the family, and who d. prior to 1476. He was created Earl Marischal of Scotland prior to 1458. By Mary, dau. of Sir James Hamilton, of Cadzow, he had, with other issue, a son,
• WILLIAM KEITH, 2nd Earl Marischal. He m. Muriella, dau. of Thomas, 1st Lord Erskine, by whom he had issue,
  • I. WILLIAM 3rd earl.
  • II. Robert.
  • III. Alexander, of Auquhorsk, ancestor of the late Rev. Dr. George Skene Keith.
  • IV. John, of Craig, ancestor of the late Sir Robert Murray Keith, K.B., a distinguished ambassador.
• The eldest son,
• WILLIAM KEITH, 3rd Earl Marischal, d. 1530. He m. 1482, Lady Elizabeth Gordon, dau. of George, 2nd Earl of Huntley, and grand-dau. of JAMES, 1st King of Scotland and Queen Jane Beaufort, by whom he had issue,
  • I. .... etc. ________________