Family: 4th Lord of Annandale Robert De Brus / Lady Isabella of Huntingdon (F2066)
3rd Lord of Annandale William De Brus (1178-1212) 
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| 8th Earl Of Huntingdon David of Scotland (1144-1219)
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Countess of Huntingdon Matilda of Chester (1171-1233)
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| Henry of Huntingdon (1215-1216) |
Earl of Huntingdon John of Scotland (1207-1237)  |
| Margaret of Huntingdon (1194-1228) |
| Ada of Huntingdon ( -1241) |
| Matilda of Huntingdon ( -1220) |
| 4th Lord of Annandale Robert De Brus (1195-1226)
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| Lady Isabella of Huntingdon (1206-1251)
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| Beatrice De Brewes ( -1273) |
