Stuart Montagu, 3rd Baron Swaythling British peer (1898-1990) (1898–1990) Parents Louis Montagu, 2nd Baron Swaythling Gladys, Baroness Swaythling Children Jean Mary Montagu Anthony Trevor Samuel Montagu David Montagu, 4th Baron Swaythling Siblings Ewen Montagu Ivor Montagu Joyce Samuel-Montagu Partners Jean Knox Mary Violet Levy