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Jonet Isaac

Also Known As: "Jonet", "Jonet Joan; (de) ISAAC", "(Jonet Joan; de) ISAAC"
Birthplace: Lorn, Argyllshire, Scotland
Death: circa 1382 (36-53)
Lorn, Argyllshire, Scotland
Immediate Family:

Daughter of Sir Thomas Isaac and Maud Bruce
Wife of Malcolm Fleming of Biggar and John MacDougall, 5th of Lorn and 7th of Dunollie
Mother of Janet MacDougall of Lorn and Isabel MacDougall
Sister of Catherine Isaac; Maud Isaac and Baron John Isaac of Dunfermline

Managed by: Private User
Last Updated:

About Jonet Isaac

Children of Joan Isaac and Ewen MacDougall, 5th of Lorn and 7th of Dunollie

  1. Isabella Macdougall+2 d. 21 Dec 1439
  2. Jonet de Ergadia2


  1. [S11] Alison Weir, Britain's Royal Family: A Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 210. Hereinafter cited as Britain's Royal Family.
  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 VIII, page 142. Hereinafter cited as The Complete Peerage.



Jamie Allen's Family Tree


James Balfour Paul, "Scots Peerage", Vol 5, p2, under Innermeath, states : "the wife of John, Lord of Lorn was Joanna, daughter of Thomas de Ysak and Matilda, daughter of King Robert I (Bruce). Douglas Richardson in "Royal Ancestry" Vol. 5 p. 39 agrees and gives an approximate birth date of 1335, and states he was living in 1370 and died before 1377.

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Jonet Isaac's Timeline

Lorn, Argyllshire, Scotland
Lorne, Argyllshire, Scotland (United Kingdom)
Lorn, Argyllshire, Scotland
Age 45
Lorn, Argyllshire, Scotland