Diarmid Edward Guinness (1938-1977) (1938–1977) Parents Elisabeth Nelson Bryan Guinness, 2nd Baron Moyne Children Siblings Mirabel Jane Helme Finn Benjamin Guinness Thomasin Margaret Guinness Kieran Arthur Guinness Fiona Evelyn Guinness Erskine Stuart Richard Guinness Catriona Rose Guinness Rosaleen Elisabeth Guinness Jonathan Guinness, 3rd Baron Moyne Desmond Guinness