George Sinclair Scottish peer, 5th Earl of Caithness (1566–1643) Parents John Sinclair, Master of Caithness Jean Hepburn Children Francis Sinclair of Stirkoke Francis Sinclair Isabel Sinclair John Sinclair Lady Elizabeth Sinclair William Sinclair, Lord Berriedale Siblings unknown Sinclair Sir James Sinclair Marie Sinclair Sir John Sinclair Francis Stewart, 5th Earl of Bothwell Partners Lady Jean Gordon