Nielsen Hayden genealogy
Ancestors of John de Grey
Abt 1272 - 1311 (~ 39 years) ┌── Robert de Grey ( - Between 25 Sep 1240 and 12 Jun 1245)
│ │ ┌── (Unknown de Grey)
│ └── Hawise de Grey
│
┌── Walter de Grey (of Rotherfield, Oxfordshire, England - 1267)
│ └── Amice
│
┌── Robert de Grey (of Rotherfield, Oxfordshire, England - Bef 27 May 1295)
│ │
│ │ ┌── Walkelin de Duston
│ │ ┌── William de Duston (of Duston, Northamptonshire, England - Sep 1218)
│ │ │
│ │ ┌── William de Duston (of Duston, Northamptonshire, England - Bef 31 Aug 1231)
│ │ │ └── Joan de Noel ( - Bef 1212)
│ │ │
│ └── Isabel de Duston ( - Between 1304 and 1305)
│ └── Mary ( - Aft 1235)
│
John de Grey (Abt 1272 of Rotherfield, Oxfordshire, England - 17 Oct 1311)
│
│ ┌── Alan de Valoines (of Shabbington, Buckinghamshire, England - ??)
│ ┌── Robert de Valoines (of Shabbington, Buckinghamshire, England - Bef 1234)
│ │ │
│ │ │ ┌── Torfin de Alveston
│ │ └── Helen of Alveston
│ │
│ ┌── Thomas de Valoines (of Shabbington, Buckinghamshire, England - bur.Abt 1275)
└── Joan de Valoines ( - Bef 12 Nov 1312)
└── Joan ( - Aft 1302)