fifth avenue princess
Someone prominent from a wealthy, respectable background and impeccable breeding, such as the European and New York business tycoons, the Balash family or the Vanderbilts, the Kennedys. Mostly the Balash cousins and Balash sisters were dubbed "5th Avenue Princesses" during their early childhood, growing up in the top suite of the Plaza Hotel on 5th Avenue at Central Park.
Excerpt from Vogue, issue in 1998: She was a true Fifth Avenue Princess - elegant, clever, chic, glamourous and angelic, that prominent Jacqueline Balash side by side her prominent family; her gorgeous cousin and her almost identical older sister!