House Sinclair of Longformacus
Cadet branch of the House of Sinclair
- Coat of Arms
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House Sinclair of Longformacus
Lords of Longformacus
Ancient arms -
House Sinclair of Longformacus
Baronets of Longformacus
Arms after 1664
- Stevenston branch
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House Sinclair of Stevenston
Lords and Baronets of Stevenston -
House Sinclair of Stevenston
Baronets of Stevenston
Arms from 1767