Marisa Berenson was the elder daughter of Robert L. Berenson, an American diplomat turned shipping executive, who was of Lithuanian Jewish descent; his family's original surname was Valvrojenski. Her mother was born Countess Maria Luisa Yvonne Radha de Wendt de Kerlor, better known as Gogo Schiaparelli, a socialite of Italian, Swiss, French, and Egyptian ancestry.
Her maternal grandmother was the Italian-born fashion designer Elsa Schiaparelli, and her maternal grandfather was Count Wilhelm de Wendt de Kerlor, a Theosophist and psychic medium. Her younger sister, Berinthia, became the model, actress, and photographer Berry Berenson. She also was a great-grand-niece of Giovanni Schiaparelli, an Italian astronomer who believed he had discovered the supposed canals of Mars, and a great-grand-niece of art expert Bernard Berenson (1865 – 1959) and his sister Senda Berenson (1868 – 1954), an athlete and educator who was one of the first two women elected to the Basketball Hall of Fame.
Oh to think of a time when one could be granddaughter to a couturier and a medium and when Jim Henson's progeny were still totally weird and the clouds didn't always need to be swept away.