Isabel was the daughter of sir John VIII Colquhoun and Mary Lennox. The date and place of her birth have not been found.
Her husband was David Douglas. They were married, but the date and place have not been found. They had no known children.
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sir John VIII Colquhoun |
sir Humphrey Colquhoun |
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Mary Lennox |
Donnchadh Faslane Lennox |
sir Baltar mac Amlaimh |
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Margaret Lennox |
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Helen Campbell |
Gillespie Campbell |
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Mary Lamont |
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