Nielsen Hayden genealogy
Ancestors of Katherine Aton
┌── William Aton (of West Ayton, Yorkshire, England - ??)
┌── Gilbert de Aton (of West Ayton, Yorkshire, England - Aft 10 Apr 1350)
│ └── Isabel de Veer =>
│
┌── William de Aton (Abt 1299 - 10 Feb 1388 bur.Old Malton Priory, Yorkshire, England)(m. Bef Jan 1327)
│
│ ┌── Henry de Percy (25 Mar 1273 Petworth, Sussex, England -
│ │ 2 Oct 1314 Alnwick, Northumberland, England) =>
│ │ 2 Oct 1314 Alnwick, Northumberland, England) =>
│ ┌── Henry de Percy (1299 - 26 Feb 1352 Warkworth, Northumberland, England)(m. Abt 1318)
│ │ └── Eleanor de Arundel (Abt 1284 Arundel, Sussex, England -
│ │ 1328 bur.Beverley, Yorkshire, England) =>
│ │ 1328 bur.Beverley, Yorkshire, England) =>
│ │
└── Isabel Percy ( - Between 13 Sep 1349 and 25 May 1368)(m. Bef Jan 1327)
│
│ ┌── Robert de Clifford (Abt 1 Apr 1274 - 24 Jun 1314 Bannockburn, Stirlingshire, Scotland)
│ │ (m. 13 Nov 1295) =>
└── Idoine de Clifford (of Appleby, Westmorland, England -
24 Aug 1365 bur.Beverley Minster, Yorkshire, England)(m. Abt 1318)
24 Aug 1365 bur.Beverley Minster, Yorkshire, England)(m. Abt 1318)
└── Maud de Clare ( - 1 Feb 1325)(m. 13 Nov 1295) =>