Marjory Sutherland (ca. 1436 - 1477) (d. 1480) Parents Alexander Sutherland Catherine Chalmers Children Alexander Sinclair Eleanor Sinclair William Sinclair, 2nd Earl of Caithness Catherine Sinclair Oliver St Clair, 12th Baron of Roslin Arthur Sinclair Robert Sinclair George Sinclair Siblings Mariota Sutherland, of Dunbeath Partners William Sinclair, 1st Earl of Caithness