Nielsen Hayden genealogy
Descendants of Isabel de Boltby
Father: Adam de Boltby (of Langley, Northumberland, England - ??)
Mother: Annor
Isabel de Boltby
Thomas de Lucy (of Aspatria, Cumberland, England - Bef 9 Apr 1305)(m. Bef 27 Sep 1280)
   └─ Anthony de Lucy (Between 1281 and 1283 - 1343)
    Elizabeth
       └─ Joan de Lucy ( - 4 Jul 1369)
        William de Melton (of Aston, Yorkshire, England - 1362)
           └─ William de Melton (Between 1339 and 1341 of Aston, Yorkshire, England - 7 Mar 1399) =>
            + Elizabeth