Member Information
| Full Name | ♀️ Isobel Isabella Courtenay -  |
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| Birth | #1 | Date of Birth | 1450 |
| Place of Birth | South West, Devon, England | ||
| Father | William Courtenay, Kt. | ||
| Mother | Margaret Bonville | ||
| Siblings | ♀️ Catherine Courtenay, ♂️ Edward Courtney, ♀️ Margaret Joan Courtenay, ♂️ James Courtenay, ♂️ Philip Courtenay, ♂️ Edward Edward of Lanark Courtney, ♀️ Elizabeth Courtenay, ♀️ Joan Courtenay, ♂️ William Courtenay | ||