William Sinclair, 4th Lord Sinclair Peerage person ID=134579 (d. 1570) Parents Henry Sinclair, 4th Lord Sinclair Margaret Hepburn Children Henry Sinclair, 5th Lord Sinclair Magnus Sinclair Siblings Elizabeth Sinclair Margaret Sinclair Elene Sinclair Lady Agnes Sinclair Jean Sinclair Katherine Sinclair Helen Sinclair Partners Lady Elizabeth Keith Mariota Bruce