Reginald Claypoole Vanderbilt was an American millionaire and one of the leading equestrians of the country. He was a fourth generation member of the Vanderbilt family, also known as the American Royalty for their multimillion dollar railroad business started by his great grandfather Cornelius "Commodore" Vanderbilt. Reginald himself was a renowned horseman and founded a number of equestrian organizations. He was the president of the National Horseshow association of America and the American Hackney Horse Society. During his lifetime, he had been known for his luxurious lifestyle, and in the decades following his death, he came to be known as the father of famous fashion designer Gloria Vanderbilt. He is the maternal grandfather of Anderson Hays Cooper, a CNN television news anchor and the most famous descendant of the Vanderbilt family in the current times.