Nielsen Hayden genealogy
Descendants of (Unknown father of Walter and Ilbert de Lacy)
(Unknown father of Walter and Ilbert de Lacy)
   ├─ Ilbert de Lacy ( - Abt 1093 Pontefract, Yorkshire, England)
   │ Hawise
   │    └─ Robert de Lacy (of Pontefract, Yorkshire, England - Bef 1129)
   │     Maud ( - Aft 1154)
   │        └─ Aubrey de Lacy (of Pontefract, Yorkshire, England - ??) =>
   │         + Robert de Lisours
   └─ Walter de Lacy (Abt 1042 Lassy, Calvados, France - 2 Apr 1084 Hereford, Herefordshire, England)
    Emma
    :   └─ Agnes de Lacy
    :    Geoffrey Talbot ( - 22 Aug 1140)
    :        + Payn fitz John (Bef 1100 - 10 Jul 1137 bur.Gloucester Abbey, Gloucester, Gloucestershire, England)
    Ermeline (m. 1066)
       └─ Roger de Lacy ( - 1106)
       
            +