Floyd Patterson was an American professional boxer who competed from 1952 to 1972, and twice reigned as the world heavyweight champion between 1956 and 1962. At the age of 21, he became the youngest boxer in history to win the title, and was also the first heavyweight to regain the title after losing it. As an amateur, he won a gold medal in the middleweight division at the 1952 Summer Olympics. He has been named among the top 15 heavyweights of all time. World heavyweight champion (NBA and NYSAC) from June 20, 1960 to September 25, 1962. Wiki link