Julio Mario Santo Domingo III is a New York City disc jockey and one of four heirs to his namesake grandfather's Colombian beer fortune. Julio Mario Santo Domingo, who died in 2011, owned Bavaria Brewery but sold it in 2005 for 15% of SABMiller. FORBES obtained new information this year that he left one-sixth of his fortune to his grandson, whose father Julio Mario Jr. had died in 2009. Today Julio Mario Santo Domingo III lives in a $4 million apartment in New York City and spends his time promoting his DJ group Sheik 'n' Beik, which throws late-night electronic music parties in Manhattan. His father, a onetime investment adviser who retired young to focus on gathering unusual artifacts, left his son an inheritance that included the world's largest collection of opium pipes, along with 50,000 books, posters, photographs and other memorabilia documenting psychoactive drugs and their effects on people and society. The collection is currently on a long-term loan to Harvard University. His sister Tatiana and his two uncles, Alejandro and Andres, are also billionaires and heirs to the Santo Domingo fortune.