William de Aton, 2nd Baron Aton

Arms of Gilbert de Aton, as displayed in Ashmole Roll

William was the son and heir of Gilbert de Aton of Ayton.[1] Baron Aton was summoned to a Council in October 1359, and to Parliament on 8 January 1370 by writ. He was Sheriff of Yorkshire between 1368-70 and 1372-73. He participated in the French Wars of King Edward III of England. He died c. 1388, his son and heir William died in his minority, thus the Barony fell into abeyance between his daughters.[2][3]

William married Isabel, daughter of Henry de Percy, 2nd Baron Percy and Idoine de Clifford in c.1326.[4] They are known to have had the following issue:

• William de Aton, died before 1388, without legitimate issue.
• Anastasia de Aton, married Edward St. John.
• Katherine de Aton, married Ralph de Eure of Witton
• Elizabeth de Aton, married firstly William Playce and secondly John Conyers of Sockburn

• Burke, Bernard (1883). Dormant, Abeyant, Forfeited and Extinct Peerages. Burke's Peerage Ltd, London.
• Burke, John (1846). A General and Heraldic Dictionary of the Peerages of England, Ireland, and Scotland, extinct, dormant, and in abeyance. Henry Colburn.
• Cokayne, G. E (1887). Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom. Vol. 1. George Bell & Sons, London.
• Nicolas, Nicholas Harris (1825). Synopsis of the Peerage of England: Exhibiting, Under Alphabetical Arrangement, the Date of Creation, Descent and Present State of Every Title of Peerage which Has Existed in this Country Since the Conquest. Vol. 1. J. Nicholas and Son.