Bethsabée de Rothschild was a great-granddaughter of James Mayer Rothschild (1792-1868) and the fourth and youngest child of Baron Édouard Alphonse de Rothschild (1868-1949) and his wife, the former Germaine Alice Halphen (1884-1975) [REF].
Though born to a wealthy and influential family, Bethsabée was said to have detested the rich lifestyle and distanced herself from her family, with the exception of her sister Jacqueline, with whom Bethsabée appeared to have been close[REF] and her brother Guy.