Louis-Dreyfus was born in New York City to a wealthy French-Jewish family known for owning the French Louis Dreyfus Group, one of the world's largest commodities trading and merchandising firms (with interests in shipping, real estate and sports management, in addition to agribusiness). Her mother, Judith, is a writer, and her French father, Gérard Louis-Dreyfus (who changed his name to William in the 1940s), is an attorney and billionaire business executive.
[1][2] She also has a sister, Phoebe, who is a social worker.
alto both were born in NYC they are not related.