Desmond Guinness Irish architectural historian (1931–2020) Parents Bryan Guinness, 2nd Baron Moyne Diana Mosley Children Marina Guinness Patrick Guinness Siblings Jonathan Guinness, 3rd Baron Moyne Finn Benjamin Guinness Mirabel Jane Helme Thomasin Margaret Guinness Kieran Arthur Guinness Fiona Evelyn Guinness Diarmid Edward Guinness Catriona Rose Guinness Erskine Stuart Richard Guinness Rosaleen Elisabeth Guinness Oswald Alexander Mosley Max Mosley Partners Mariga Guinness