Her father, Iraqi Turkmen billionaire Nemir A. Kirdar, founded the merchant bank Investcorp in the 1980s, which later acquired Gucci, Tiffany & Co. and Saks Fifth Avenue.
She moved from London to New York City in 1991, and purchased Sean Combs' townhouse on Park Avenue.
[citation needed] As a member of the Manhattan social scene, Kirdar threw "some of the most lavish and unforgettable costume parties" of the 1990s, including Sloan-Kettering's Valentine's Day Ball, New York City Ballet's Dance with the Dancers Gala, and events for the Boys' Club of New York, Saks Fifth Avenue, and Bruno Magli.
[3] In 2002, she published Be My Guest, a detailed photographic diary of her most successful themed events, with tips on invitations, table settings, recipes, cocktails, decorations, and music.
[4] Rena married Saudi businessman Sami Sindi in 1991, and they had two daughters.