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William (Aton) de Aton (1299 - 1388)

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Sir William "1st Lord Aton" de Aton formerly Aton aka d'Aton
Born in Malton, North Riding, Yorkshiremap
Ancestors ancestors
Son of and [mother unknown]
[sibling(s) unknown]
Husband of — married before [location unknown]
Descendants descendants
Died in West Ayton, Yorkshire, Englandmap
Profile last modified | Created 4 Jul 2012
This page has been accessed 1,489 times.



William de Aton[1]

b. c. 1299 Malton, North Riding, YKS[citation needed]
died testate 10 February 1388[2]


Father: Sir Gilbert de Aton (p. Sir William de Aton and Isabel de Vere)[1] and Margerie de Vesci.


m.1340 Isabel Percy (d.ante1368; Father: Henry de Percy, 2nd Baron Percy).[2] Issue: 4[3]

  • William (d. before father).
  • Anastasia m. Sir Edward de St. John
  • Katherine m. Sir Ralph de Eure
  • Elizabeth
m.1 Sir William Playtz
m.2 John Conyers, Esq of Sokebourne, Durham


  • 08 Jan 1371: Summoned to Parliament
  • 42 Edward III: Sherrif of Yorkshire
  • Barony fell at death.


  • Royal Ancestry by Douglas Richardson Vol. IV page 351
  1. Burke, 1866
  2. Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, 5 vols., ed. Kimball G. Everingham, (Salt Lake City, Utah: the author, 2013), Volume I, pp 570-571 BROMFLETE #12 William de Aton, Knt.
  3. Burke, (1866) says 3rd Baron Percy; 3 dau became co-heiresses

Ancestral File Number: FL8V-XW

Burke, B. (1866). A Genealogical History of the Dormant: Abeyant, Forfeited, and Extinct Peerages of the British Empire Harrison, (pp.15). Google eBook.

Brydges, E. (1812). "Percy, Duke of Northumberland." Collins's Peerage of England Genealogical, Biographical, and Historical, (Vol. II, pp.217-366). London: F.C. and J. Rivington, Otridge and Son. Print. (see eBook at

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No known carriers of William's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests.

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On 30 Sep 2017 at 05:36 GMT RJ Horace wrote:

Clay, JW: Extinct Northern Peerages, page 4, V.

His mother is unknown. Margaret de Vesci was his great-grandmother.

On 19 Aug 2015 at 20:26 GMT April (Dellinger) Dauenhauer wrote:

* Our Royal, Titled, Noble and Commoner Ancestors & Cousins database online, compiled by Mr. Marlyn Lewis, follows Douglas Richardson's Magna Carta Ancestry. It includes Magna Carta Surety Barons and many of their descendants. William Aton m. Isabel de Vere

William Aton m Isabel Percy

The William Aton-10 who married Isabel de Vere is the grandson of Gilbert Aton and Margaret Vesci.

He is NOT the brother of William Aton-16 who married Isabel Percy. William Aton-16 is the grandson of William Aton and Isabel de Vere.

These profiles need sorting, and Marlyn Lewis has the accurate lineage, sourced.

On 19 Nov 2013 at 19:03 GMT J Pictet wrote:

With all these Aton around, I would have thought that it was the proper name.

William is 22 degrees from Jim Angelo, 19 degrees from Willis Carrier and 7 degrees from Henry VIII of England on our single family tree. Login to find your connection.

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