Nielsen Hayden genealogy
Family: William FitzWarin / Mary of Argyll, Queen of Man (F17236)
m. Bef 10 Apr 1299-
Male
William FitzWarin
Birth Death Bef 1 Dec 1299 Burial Church of the Grey Friars, London, England 
Marriage Bef 10 Apr 1299 [1] Father Mother
Female
Mary of Argyll, Queen of Man
Birth Death Between 28 Sep 1300 and 10 Oct 1303 Burial Church of the Grey Friars, London, England Other Spouse Hugh de Abernethy | F16379 Marriage Other Spouse Magnus, King of Man | F17235 Marriage Other Spouse Malise of Strathearn | F17237 Marriage Abt 1268 Father Ewen of Argyll | F17234 Group Sheet Mother
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Sources - [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.
- [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.