Nielsen Hayden genealogy
Descendants of Ralph fitz Roger
- Bef 1195Father: Roger the Steward ( - 1145)
Ralph fitz Roger (of Thornton Steward, Yorkshire, England - Bef Oct 1195)
   └─ Roger de Thornton ( - Bef 1205)
   
       └─ Wimar de Thornton (of Wicken, Cambridgeshire, England - Bef 1243)
        Joan ( - Aft 1249)
            + Edmund de Kemesek ( - 1253)