Nielsen Hayden genealogy
Descendants of Beatrice de Glanville
- Aft 1170Father: Bartholomew de Glanville ( - Aft 1225)
Mother: Isabel
Beatrice de Glanville ( - Aft 1170)
Hugh de Leigh (of Thurleigh, Bedfordshire, England - Aft 1186)
   └─ Bartholomew de Leigh (of Thurleigh, Bedfordshire, England - Abt 1217)
    Emma Ruffus (of Armston, Northamptonshire, England - Aft 1241)
       └─ Nichole de Leigh (of Thurleigh, Bedfordshire, England - Aft 1227)
        Roger de Cauz (of Duston, Northamptonshire, England - Aft 1212)
            + John de Grey (of Shirland, Derbyshire, England - Bef 18 Mar 1266)(m. Aft 28 Oct 1230)