| 1. Sir Roger Sidney |
 |
| B: |
1170 |
| P: |
Suffolk, England |
| D: |
1239 |
| P: |
Lewes, Sussex, England |
|
| 2. Symon Sidney |
|
| B: |
1145 |
| P: |
Suffolk, England |
| M: |
Abt 1169 |
| P: |
Lewes, Sussex, England |
| D: |
1213 |
| P: |
England |
|
| 4. William Sidney |
|
| B: |
1130 |
| P: |
Lewes, Sussex, England |
| M: |
|
| P: |
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| D: |
1154 |
| P: |
Lewes, Sussex, England |
|
| 8. Symon Sidney |
|
| B: |
1105 |
| P: |
Lewes, Sussex, England |
| M: |
|
| P: |
|
| D: |
1165 |
| P: |
Lewes, Sussex, England |
|
| 9. |
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| 5. |
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| 10. |
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| 11. |
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|
| 3. Margaret de la Mare |
|
| B: |
1150 |
| P: |
Childrey, Berkshire, England |
| D: |
1177 |
| P: |
Lewes, Sussex, England |
|
| 6. Thomas de la Mare |
|
| B: |
20 Nov 1116 |
| P: |
Yorkshire, England |
| M: |
1139 |
| P: |
Yorkshire, England |
| D: |
1178 |
| P: |
Epsom, Surrey, England |
|
| 12. William de la Mare |
=> |
|
| B: |
1095 |
| P: |
Guisborough, Yorkshire, England |
| M: |
1121 |
| P: |
|
| D: |
1140 |
| P: |
Yorkshire, England |
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| 14. |
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| 15. |
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1170 - 1239 (69 years)
