Sir William de Aton, 2nd Baron Aton, of Ayton and Malton Yorkshire was a 13th–14th century English noble. He died . Life William was the son and heir of Gilbert de Aton of Ayton. 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 , his son and heir William died in his minority, thus the Barony fell into abeyance between his daughters. Marriage and issue William married Isabel, daughter of Henry de Percy, 2nd Baron Percy and Idoine de Clifford in . 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 Citations References Year of birth unknown 1388 deaths Barons Aton People from the East Riding of Yorkshire