David Montagu, 4th Baron Swaythling British Baron (1928-1998) (1928–1998) Parents Stuart Montagu, 3rd Baron Swaythling Mary Violet Levy Children Fiona Yvonne Montagu Charles Montagu, 5th Baron Swaythling Nicole Mary Montagu Siblings Jean Mary Montagu Anthony Trevor Samuel Montagu Partners Christiane Françoise Dreyfus