When was the brother of Alfrederick born who was also  three-time Olympic gold medalist ?
Al Joyner Alfrederick "Al" Joyner (born January 19, 1960) is an American former athlete and now coach. He was born in East St. Louis, Illinois. He is the 1984 Olympic gold medalist in the triple jump. He was also the husband of three-time Olympic gold medalist and world 100 m and 200 m record holder Florence Griffith Joyner and is the brother of three-time Olympic gold medalist and world heptathlon record holder Jackie Joyner-Kersee.
Alvin Kraenzlein Alvin Christian "Al" Kraenzlein (December 12, 1876 – January 6, 1928), known as "the father of the modern hurdling technique", was an American track-and-field athlete, and the first sportsman in the history of Olympic games to win four individual gold medals in a single discipline at the 1900 Summer Olympics in Paris. Before, Carl Schuhmann, a German athlete, won four Olympic titles in gymnastics and wrestling at the 1896 Summer Olympics in Athens. s of 2016 , Alvin Kraenzlein is the only track-and-field athlete who has won four individual titles at one Olympics. Kraenzlein is also known for developing a pioneering technique of straight-leg hurdling, which allowed him to set two world hurdle records. He is an Olympic Hall of Fame (1984) and USA Track & Field (1974) inductee.