Charles F. Dolan, who founded some of the most prominent U.S. media companies including Home Box Office Inc. and Cablevision Systems Corp., has died at age 98.

Per CNN, Dolan was also a founder and chairman emeritus of The Lustgarten Foundation, which conducts pancreatic cancer research. According to Forbes, Dolan and his family have a net worth of 5.4 billion at the time of his death.

Charles F. Dolan's business choices were diverse and prolific: He founded HBO, bought Madison Square Garden and the New York Knicks, and took over a newspaper. Dolan died Dec. 28 at 98.