Nielsen Hayden genealogy
Descendants of Sybil de Valognes
- Aft 1212Father: Roger de Valognes ( - Abt 1141)
Mother: Agnes fitz John ( - Aft 1184)
Sybil de Valognes ( - Aft 1212 bur.Nun Appleton Priory, Yorkshire, England)
Robert de Ros (of Helmsley, Yorkshire, England - 1162)(m. Bef 1145)
:   └─ Everard de Ros (Bef 1146 of Helmsley, Yorkshire, England - Bef 29 Sep 1183)
:    Roese Trussebut (Abt 1151 - Bef 1187)
:       └─ Robert de Ros (Between 1170 and 1172 Helmsley, Yorkshire, England -
:        Bef 23 Dec 1226 bur.Temple Church, London, England)
:        Bef 23 Dec 1226 bur.Temple Church, London, England)
:        Isabel of Scotland (m. 1191 Haddington, East Lothian, Scotland)
:           ├─ Robert de Ros (of Wark, Northumberland, England - Bef Nov 1269) =>
:           │ +
:           └─ William I de Ros (Aft 1192 of Helmsley, Yorkshire, England -
:            1264 bur.Kirkham Priory, Yorkshire, England) =>
:            1264 bur.Kirkham Priory, Yorkshire, England) =>
:            + Lucy fitz Peter (of Blaen Llyfni, Cathedine, Brecconshire, Wales - Aft 29 Sep 1266)
:            (m. Bef 24 Jan 1234)
:            (m. Bef 24 Jan 1234)
+ William de Percy (of Topcliffe, Yorkshire, England - Between 1174 and 1175 bur.Fountain Abbey, Yorkshire, England)
(m. Between 1164 and 1166)
(m. Between 1164 and 1166)