House of St Clair-Erskine
Cadet branch of the House of Erskine
- Coat of Arms
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House Erskine of Alva
Lords of Tinwald and Aberdona
Baronets of Alva -
House of St Clair-Erskine
Barons Loughborough
Earls of Rosslyn
Additional surname of St Clair adopted by 6th Baronet of Alva and 2nd Earl of Rosslyn in 1796 as successor to their estates
- Cadet Branches
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House of Erskine-Murray
Lords of Aberdona
Lords Elibank
Matrilineal branch issued from Isabella, a scion of Erskine of Alva by Charles Erskine of Tinwald, 3rd son of Charles Erskine, 1st Baronet of Alva