Joan Yarde-Buller English socialite (1908-1997) (1908–1997) Parents Denise Orme John Yarde-Buller, 3rd Baron Churston Children Patrick Guinness Aga Khan IV Amyn Aga Khan Siblings Lydia Yarde-Buller Richard Yarde-Buller, 4th Baron Churston John Reginald Henry Yarde-Buller Primrose Yarde-Buller Denise Yarde-Buller Partners Seymour Berry, 2nd Viscount Camrose Prince Aly Khan Loel Guinness
