| 1. Joan Isaac |
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Abt 1335 |
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, Dunfermline, Fifeshire, Scotland |
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| 2. Thomas Isaac |
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| B: |
Abt 1306 |
| P: |
, Dunfermline, Fifeshire, Scotland |
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| 6. Robert I "The Scotland, ["de Brus"] |
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| B: |
11 Jul 1274 |
| P: |
Writtle, Near Chelmsford, Essex, England |
| M: |
1302 |
| P: |
Writtle, Near Chelsford, Essex, England |
| D: |
7 Jun 1329 |
| P: |
, Cardross, Dunbartonshire, Scotland |
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| 12. Robert De Brus, Earl of Carrick |
=> |
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| B: |
Jul 1243 |
| P: |
, Annandale, Dumfriesshire, Scotland |
| M: |
1271 |
| P: |
Turnberry Castle, Ayrshire, Scotland |
| D: |
Bef 4 Apr 1304 |
| P: |
, Palestine |
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| 7. Elizabeth De Burgh |
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| B: |
Abt 1284 |
| P: |
, Dunfermline, Fifeshire, Scotland |
| D: |
26 Oct 1327 |
| P: |
, Cullen, Banffshire, Scotland |
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