Cause of death: renal failure
William Frederick Cody (February 26, 1846 – January 10, 1917), known as Buffalo Bill, was an American soldier, bison hunter, and showman.
One of the most famous and well-known figures of the American Old West, Cody started his legend at the young age of 23. Shortly thereafter he started performing in shows that displayed cowboy themes and episodes from the frontier and Indian Wars. He founded Buffalo Bill's Wild West in 1883, taking his large company on tours in the United States and, beginning in 1887, in Europe.
He was born in Le Claire, Iowa Territory (now the U.S. state of Iowa), but he lived for several years in his father's hometown in modern-day Mississauga, Ontario, before the family returned to the Midwest and settled in the Kansas Territory. Buffalo Bill started working at the age of 11, after his father's death, and became a rider for the Pony Express at age 15. During the American Civil War, he served the Union from 1863 to the end of the war in 1865. Later he served as a civilian scout for the U.S. Army during the Indian Wars. While he was initially awarded the Medal of Honor in 1872 for his actions in the Indian Wars, he was among 910 recipients to have the award rescinded in 1917. Congress reinstated the medals for Cody and four other civilian scouts in 1989.
Source : Wikipedia