Nielsen Hayden genealogy
Descendants of Isabel de Brus
Father: Robert de Brus (Abt 1220 of Annandale, Dumfriesshire, Scotland - 31 Mar 1295 Lochmaben Castle, Dumfriesshire, Scotland)
Mother: Isabel de Clare (2 Nov 1226 - Aft 10 Jul 1264)
Isabel de Brus ( - ?? bur.Easington, Durham, England)
John fitz Marmaduke (of Horden, Durham, England - Bef 16 Aug 1311 bur.Durham Cathedral, Durham, Durham, England)
   └─ Mary Fitz Marmaduke ( - Aft 1318)
    Robert de Lumley (Abt 1272 of Lumley in Little Lumley, Durham, England - Bef 13 Jul 1308)
       └─ Robert de Lumley (of Lumley in Little Lumley, Durham, England - Bef 20 Jul 1325)
        Lucy de Thweng (Abt 1290 Kilton Castle, Cleveland, Yorkshire, England - Bef 1325)
           └─ Marmaduke de Lumley (4 Sep 1314 of Lumley in Little Lumley, Durham, England -
            26 Sep 1365 Lumley in Little Lumley, Durham, England) =>
            26 Sep 1365 Lumley in Little Lumley, Durham, England) =>
            + Margaret de Holand (of Hawes, Brackley, Northamptonshire, England - Aft 26 Sep 1365)(m. Bef 1354)