Her grandfather David Rockefeller Sr. is 527 on Forbes billionaires list, and is worth $2.8 billion. Ariana, 31, is also the granddaughter of socialite Abby Aldrich Rockefeller who helped establish New Yorks Museum of Modern Art in her nine-story midtown mansion. She graduated from Columbia University, and started her eponymous lifestyle fashion brand in 2011. She previously lived in northern Brazil, where she volunteered at an elementary school run by a nonprofit organization. Ariana married her husband Matthew Bucklin after a seven-year courtship in 2010.