Nielsen Hayden genealogy
Descendants of Robert de Ros
- 1162Father: Piers de Ros (of Roos, Holderness, Yorkshire, England - Bef 1130)
Mother: Adeline Espec ( - Bef 1157)
Robert de Ros (of Helmsley, Yorkshire, England - 1162)
Sybil de Valognes ( - Aft 1212 bur.Nun Appleton Priory, Yorkshire, England)(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)