Nielsen Hayden genealogy
Descendants of Isabel de Clare
1226 - Aft 1264 (> 38 years)Father: Gilbert de Clare (Abt 1180 - 25 Oct 1230 Penrose, Brittany, France)
Mother: Isabel Marshal (9 Oct 1200 Pembroke, Pembrokeshire, Wales - 17 Jan 1240 Berkhamsted, Hertfordshire, England)
Isabel de Clare (2 Nov 1226 - Aft 10 Jul 1264)
Robert de Brus (Abt 1220 of Annandale, Dumfriesshire, Scotland -
31 Mar 1295 Lochmaben Castle, Dumfriesshire, Scotland)(m. May 1240)
31 Mar 1295 Lochmaben Castle, Dumfriesshire, Scotland)(m. May 1240)
   ├─ Isabel de Brus ( - ?? bur.Easington, Durham, England)
   │ John fitz Marmaduke (of Horden, Durham, England -
   │ Bef 16 Aug 1311 bur.Durham Cathedral, Durham, 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)
   └─ Robert de Brus (Jul 1243 - 4 Apr 1304 England)
    Marjory of Carrick (Abt 1252 - Bef Nov 1292)(m. Abt 1273)
       ├─ Maud Bruce ( - Aft Sep 1323)
       │ Hugh Ross ( - 19 Jul 1333 Halidon Hill, Northumberland, England)(m. 1308)
       │    │ + Malise of Strathearn ( - Between 7 Jun 1344 and 11 Nov 1357)(m. Between 1325 and 1328)
       │    └─ William de Ross ( - 9 Feb 1372 Delny, Ross-shire, Scotland) =>
       │     + Mary of the Isles (m. 25 May 1342)
       └─ Robert de Brus, King of Scotland (11 Jul 1274 Scotland -
        7 Jun 1329 Cardross, Dumbartonshire, Scotland)
        7 Jun 1329 Cardross, Dumbartonshire, Scotland)
        Isabel of Mar ( - Bef 1302)(m. Abt 1295)
        :   └─ Marjory Bruce ( - Oct 1317 bur.Paisley, Renfrewshire, Scotland) =>
        :    + Walter Stewart (Abt 1297 - 9 Apr 1327 Bathgate, West Lothian, Scotland)(m. Aft 25 Apr 1315)
        Elizabeth de Burgh ( - 26 Oct 1327 Cullen, Moray, Scotland)(m. 1302)
           ├─ Matilda de Brus ( - 20 Jul 1353 Aberdeen, Scotland) =>
           │ + Thomas Isaac ( - Aft Nov 1364)(m. Aft Jun 1342)
           └─ David II, King of Scotland (5 Mar 1324 Dunfermline Abbey, Fife, Scotland -
            22 Feb 1371 Edinburgh Castle, Edinburgh, Midlothian, Scotland)
            22 Feb 1371 Edinburgh Castle, Edinburgh, Midlothian, Scotland)
            + Joan, Queen Consort of Scotland (5 Jul 1321 Tower of London, London, England - 7 Sep 1362
            : bur.Church of the Grey Friars, London, England)(m. 17 Jul 1328 Berwick, Northumberland, England)
            : bur.Church of the Grey Friars, London, England)(m. 17 Jul 1328 Berwick, Northumberland, England)
            + Margaret Drummond ( - Aft 31 Jan 1375)(m. Bef Feb 1364)