It is being sold by Sasha Chermayeff, a childhood friend of John F. Kennedy Jr's. Bessette-Kennedy's sister, Lisa Bessette, gave it to Chermayeff after the couple's tragic passing. "The dress ...

After Bessette-Kennedy's death, her other sister Lisa gave the Yamamoto dress as a gift to JFK Jr.'s close friend Sasha Chermayeff, a New York-based artist, who subsequently turned it over to Bonhams.