Václav Kozák
Kozák started as a cyclist, and changed to rowing in 1952 motivated by the gold medal of the Czech coxed fours at the 1952 Olympics. In 1955 he won a national junior title in single skulls, and in 1957 won his first national senior title; he later added 14 more in various disciplines. After retiring from competitions he worked as a rowing coach at the Dukla club in Prague, raising several world championship and Olympic medalists. He was also a military officer and retired in 1991 as lieutenant colonel. In his later life he developed an addiction to alcohol and became homeless for a while. He died aged 66. Provided by Wikipedia