Nielsen Hayden genealogy
Descendants of (Unknown) Grovel
Father: John Grovel (of Harpswell, Lincolnshire, England - ??)
(Unknown) Grovel (of Harpswell, Lincolnshire, England - ??)
William Tyrwhit (of Kettleby, Lincolnshire, England - ??)
   └─ Robert Tyrwhit (of Kettleby, Lincolnshire, England - 6 Jan 1427 bur.Chancel of Bigby church, Lincolnshire)
    Isabell Kelke (of Barnetby-le-Wold, Lincolnshire, England - ??)
       ├─ Katherine Tyrwhit
       │ John Griffith (of Wichnor in Tatenhill, Staffordshire, England -
       │ 20 Jun 1471 bur.Tatenhill, Staffordshire, England)
       │ 20 Jun 1471 bur.Tatenhill, Staffordshire, England)
       │    ├─ Rhys Griffith (of Stickford, Lincolnshire, England - 8 Oct 1488) =>
       │    │ +
       │     + Robert Willoughby (of Wollaton, Nottinghamshire, England - Bef 1485)
       └─ William Tyrwhit (Abt 1390 - 1450 bur.White Friars, London, England)
        Constance St. Quintin (of Brandsburton, Yorkshire, England - Bef 1 Sep 1431)(m. Bef Nov 1410)
           └─ Adam Tyrwhit (Abt 1411 of Kettleby, Lincolnshire, England - Abt 1452) =>
            + Elizabeth Lumley