| 1. | William Plumpton (son of Robert Plumpton and Lucy De Ros). Family/Spouse: Christiana. [Group Sheet] [Family Chart] Children: |
| 2. | Robert Plumpton Robert married Lucy De Ros. [Group Sheet] [Family Chart] |
| 3. | Lucy De Ros (daughter of William De Ros and Eustache Fitzhugh).
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| 6. | William De Ros (son of William De Ros and Lucy Fitzpiers). William married Eustache Fitzhugh. [Group Sheet] [Family Chart] |
| 7. | Eustache Fitzhugh
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| 12. | William De Ros (son of Robert De Ros and Isabel of Scotland); died about 1264. William married Lucy Fitzpiers. [Group Sheet] [Family Chart] |
| 13. | Lucy Fitzpiers
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