Nielsen Hayden genealogy
Descendants of Elizabeth de Thornhill
Father: Simon de Thornhill (of Thornhill, Dewsbury, Yorkshire, England - ??)
Elizabeth de Thornhill
Henry Savile (of Thornhill, Dewsbury, Yorkshire, England - 1412)
   └─ Thomas Savile (of Thornhill, Dewsbury, Yorkshire, England - Between 16 Nov 1449 and 16 Dec 1449)
    Margaret Pilkington (m. 1442)
       ├─ John Savile (of Thornhill, Dewsbury, Yorkshire, England -
       │ Between 23 Nov 1481 and 21 Jun 1482 bur.Thornhill, Dewsbury, Yorkshire, England)
       │ Between 23 Nov 1481 and 21 Jun 1482 bur.Thornhill, Dewsbury, Yorkshire, England)
       │ Alice Gascoigne ( - Bef 14 Jan 1494)
       │    └─ Isabel Savile ( - Between 6 May 1488 and 22 Nov 1488) =>
       │     + Oliver Mirfield (Abt 1425 of Howley, Yorkshire, England - Aft 7 Jan 1462)
       │     + John Asheton
       └─ Margaret Savile ( - Bef 17 Dec 1451)
        John Hopton (of Westwood, Suffolk, England - 10 Nov 1478 bur.Blythburgh, Suffolk, England)
        (m. Aft 26 Feb 1427)
        (m. Aft 26 Feb 1427)
           │ + John Markenfield (of Markenfield, Yorkshire, England - Bef 1497)
            + Margaret Wentworth ( - 20 Apr 1478)(m. Abt Apr 1451)