Luann de Lesseps, Countess de Lesseps (née Nadeau, previously D'Agostino; born May 17, 1965) is an American television personality, model, author, and singer. In 1993, she married French entrepreneur and aristocrat Alexandre de Lesseps; they divorced in 2009 but she retained the courtesy title "countess". In 2008, de Lesseps came to prominence after being cast in the reality television series The Real Housewives of New York City, which documents the lives of several women residing in New York City. Wikipedia