Nielsen Hayden genealogy
Descendants of Maud de Quincy
1172 -Father: Robert de Quincy ( - 1172)
Mother: (Unknown) de Clare
Maud de Quincy (1172 - ??)
Philip de Prendergast (of Enniscorthy in Templeshanbo, Wexford, Ireland - Aug 1229)
   └─ Gerald de Prendergast (of Enniscorthy in Templeshanbo, Wexford, Ireland - Aug 1251)
    (Unknown) de Burgh
    :   └─ Maud de Prendergast (Abt 1242 - Bef 1276)
    :    Maurice fitz Maurice (Abt 1238 - Bef 2 Sep 1277)(m. Bef 28 Oct 1259)
    :       └─ Juliane fitz Maurice (of Offaly, Ireland - Bef 24 Sep 1300) =>
    :        + Thomas de Clare (Between 1243 and 1248 - 29 Aug 1287 Ireland)(m. Bef 18 Feb 1275)
    + Maud Walter