Michael Eric Dillon, 20th Viscount Dillon of Costello-Gallin (1911-1979) (1911–1979) Parents Nora Beckett Eric Dillon, 19th Viscount Dillon Children Inés Dillon Patrick Dillon Charles Dillon, 21st Viscount Dillon of Costello-Gallin Michael Dillon Rosaleen Dillon Madeleine Marie Dillon Isabel Dillon Richard Dillon Siblings Pamela Dillon Partners Irène Marie Merandon du Plessis