Conversation so far:
What relics are notable from the life of Osceola?
By 1885, the death mask and some of Osceola's belongings were being held in the anthropology collection of the Smithsonian Institution.
Any other notable relics from the time around Osceola's death?
In 1979 the Seminole Nation of Oklahoma bought Osceola's bandolier and other personal items from a Sotheby's auction.
What else was of importance after Osceola's death?
Weedon apparently preserved Osceola's head in a large jar of alcohol and took it to St. Augustine, where he exhibited it in the family drugstore.
What happened next when Osceola's belongings gain popularity?
Because of the chief's significance, over time some people have created forgeries of Osceola's belongings. Rumors persist that his embalmed head has been found in various locations.
What info is interesting that readers should know from the article?
Osceola was transported to Fort Moultrie in Charleston, South Carolina. He died there a few months later of causes reported as an internal infection or malaria.
Other notable or interesting information from the article?
Because of his renown, Osceola attracted visitors in prison, including renowned artist George Catlin, who painted perhaps the most well-known portrait of the Seminole leader.

Question: Was he successful in gathering support?
Self-contained rewrite: Was Osceola successful in gathering support?