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In page Romina Power:

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Stanislas "Stash" Klossowski de Rola, the eldest son of the painter Balthus, proposed marriage to Power when she was 15 and he was 23.[1] She accepted and her mother approved, provided that he wait until Power turned 18 and was allowed to develop artistically first.[2] Klossowski de Rola introduced Power to Paul McCartney, Jane Asher, and Syd Barrett, with whom she later became friends.[citation needed] The couple later postponed their wedding indefinitely.[3]