Nielsen Hayden genealogy
Family: John l'Arcedekne / Cecelia Haccombe (F4220)
m. Aft 23 Dec 1327-
Male
John l'Arcedekne
Birth Abt 1305 of Ruan Lanihorne, Cornwall, England 
Death Bef 21 Dec 1377 Burial Marriage Aft 23 Dec 1327 [1] Father Thomas l'Arcedekne | F4241 Group Sheet Mother Alice de la Roche | F4241 Group Sheet
Female
Cecelia Haccombe
Birth of Haccombe, Decon, England Death Aft 1365 Burial Father Jordan Haccombe | F4263 Group Sheet Mother Isabel St. Aubin | F4263 Group Sheet
Male
+ Warin l'Arcedekne
Birth Abt 1355 of Elerky in Veryan, Cornwall, England Death Bef 10 Dec 1400 Burial Spouse Elizabeth Talbot | F16661 Marriage Bef 1383
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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.