Theodore Dominic Geoffrey Dillon-Lee, 15th Viscount Dillon of Costello-Gallin (1811-1879) (1811–1879) Parents Henry Dillon, 13th Viscount Dillon Henrietta, Viscountess Dillon Children Siblings Louisa Anne Rose Lee Dillon Constantine Dillon Charles Dillon, 14th Viscount Dillon Gerald Normanby FitzGibbon Margaret Frances Florence Dillon Robert George Lee Dillon Henrietta Stanley, Baroness Stanley of Alderley Arthur Edmund Denis Dillon-Lee