20th-century businesswomen

Isabel Luberza Oppenheimer (23 July 1901 – 4 January 1974), better known as "Isabel la Negra", was a Puerto Rican brothel owner and madam in barrio Maragüez, Ponce, Puerto Rico. Her name and her brothel, Elizabeth's Dancing Club, became part of Puerto Rican folklore both during her life and posthumously.

Christina Onassis (Greek: Χριστίνα Ωνάση; 11 December 1950 – 19 November 1988) was a Greek businesswoman, socialite, and heiress to the Onassis fortune. She was the only daughter of Aristotle Onassis and Athina Mary Livanos.