House of Sinclair
- Coat of Arms
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House of Sinclair
Feudal Barons of Rosslyn
Ancient arms -
House of Sinclair
Feudal Barons of Rosslyn
Earls of Orkney -
House of Sinclair
Lords Berriedale
Earls of Caithness
Arms used by 1st and 2nd Earls of Caithness -
House of Sinclair
Lords Berriedale
Earls of Caithness
Arms from ca.1498 -
House of Sinclair
Lords Berriedale
Earls of Caithness
Arms from c.18th
- Additional Arms
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House of Sinclair
as Earls of Orkney -
House of Sinclair
as Earls of Caithness
- Cadet Branches
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House Sinclair of Longformacus
Lords and Baronets of Longformacus
Issued from Gregory, younger son of William Sinclair, Baron of Rosslyn and younger brother of Henry Sinclair, 1st Earl of Orkney -
House Sinclair of Dysart
Lords of Ravenscraig, Dysart, Newburgh and Kirkwall
Lords Sinclair
Issued from William, son of William Sinclair, 1st Earl of Caithness from his 1st marriage (disinherited) -
House Sinclair of Rosslyn
Feudal Barons of Rosslyn
Issued from Oliver, younger son of William Sinclair, 1st Earl of Caithness from his 2nd marriage -
House of Spence
Lords of Houlland, Gardie, Cullivoe and Midbrake
Issued from David, illegitimate son of William Sinclair, 1st Earl of Caithness -
House Sinclair of Ulbster
Lords and Baronets of Ulbster
Viscounts of Thurso
Issued from John, illegitimate son of William, 2nd son of George Sinclair, 4th Earl of Caithness -
House Sinclair of Dunbeath
Lords of Latheron and Geanies
Lords and Baronets of Dunbeath
Issued from Alexader, 4th son of George Sinclair of Mey, 3rd son of George Sinclair, 4th Earl of Caithness -
House Sinclair of Stirkoke
Lords of Stirkoke and Alterwall
Issued from Francis, illegitimate son of George Sinclair, 5th Earl of Caithness -
House Sinclair of Murkle
Lords of Murkle (Murchill)
Issued from James, 2nd son of John Sinclair, Master of Caithness and younger brother of George Sinclair, 5th Earl of Caithness
8th and 9th Earls of Caithness were of this line -
House Sinclair of Rattar
Lords of Greenland, Rattar and Freswick
Issued from John, 3rd son of John Sinclair, Master of Caithness
10th and 11th Earls of Caithness were of this line
- Personal Arms
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William Sinclair
2nd Earl of Caithness
Eldest son of 1st Earl of Caithness from his 1st marriage
Alternative arms variant