| 1. Lucy de Thweng |
 |
| B: |
Abt 1290 |
| P: |
Kilton Castle, Cleveland, Yorkshire, England |
| D: |
Bef 1325 |
| P: |
|
|
| 2. Marmaduke de Thweng |
|
| B: |
|
| P: |
of Kilton in Brotton, Yorkshire, England |
| M: |
1273 |
| P: |
|
| D: |
Bef 26 Feb 1323 |
| P: |
|
|
| 4. Marmaduke de Thweng |
|
| B: |
|
| P: |
of Kilton in Brotton, Yorkshire, England |
| M: |
Abt 1242 |
| P: |
|
| D: |
Between 1282 and 1284 |
| P: |
|
|
| 8. Robert de Thweng |
=> |
|
| B: |
|
| P: |
of Thwing, Bridlington, Yorkshire, England |
| M: |
Bef Jan 1229 |
| P: |
|
| D: |
Between 1245 and 1257 |
| P: |
|
|
|
|
|
|
| 10. Peter de Brus |
=> |
|
| B: |
Bef 1201 |
| P: |
of Skelton, Yorkshire, England |
| M: |
Bef 1219 |
| P: |
|
| D: |
Bef 15 Nov 1240 |
| P: |
|
|
|
|
| 3. Isabel de Ros |
|
| B: |
|
| P: |
of Ingmanthorpe in Kirk Deighton, Yorkshire, England |
| D: |
1309 |
| P: |
|
|
| 6. William de Ros |
|
| B: |
|
| P: |
of Ingmanthorpe in Kirk Deighton, Yorkshire, England |
| M: |
1268 |
| P: |
|
| D: |
Bef 28 May 1310 |
| P: |
|
|
| 12. William I de Ros |
=> |
|
| B: |
Aft 1192 |
| P: |
of Helmsley, Yorkshire, England |
| M: |
Bef 24 Jan 1234 |
| P: |
|
| D: |
1264 |
| P: |
|
|
| 13. Lucy fitz Peter |
=> |
|
| B: |
|
| P: |
of Blaen Llyfni, Cathedine, Brecconshire, Wales |
| D: |
Aft 29 Sep 1266 |
| P: |
|
|
|
|
|
|
|
Nielsen Hayden genealogy
Abt 1290 - Bef 1325 (~ 34 years)