Tracing Douglas family roots - unraveling history, one generation at a time.

| George Philip (15th Earl of Caithness) Sinclair | |
| B: | 30 Nov 1858 |
| D: | 25 May 1889 |
| Unmarried | |
![]() | James (14th Earl of Caithness) Sinclair |
| James (14th Earl of Caithness) Sinclair | |
| D: | Yes, date unknown |
|
![]() | Alexander (13Th Earl of Caithness) Sinclair |
| Alexander (13Th Earl of Caithness) Sinclair | |
| D: | Yes, date unknown |
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