Charles Dillon, 21st Viscount Dillon of Costello-Gallin (1945-1982) (1945–1982) Parents Michael Eric Dillon, 20th Viscount Dillon of Costello-Gallin Irène Marie Merandon du Plessis Children Siblings Isabel Dillon Patrick Dillon Madeleine Marie Dillon Richard Dillon Michael Dillon Inés Dillon Rosaleen Dillon