The answer to this is more complicated than most inquiries regarding celebrity children and autism. Sylvester Stallone’s oldest son died in 2012 and his mother requested that in lieu of flowers that a donation should be made to an autism research group. This had people thinking that Sage was the one with autism, but, in fact, his brother Seargeoh does. Sage’s death was a tragic and terrible event in the life of Stallone and his family, but they tried to make the best of it in this way. People honored the request and the charity received a great deal of money through this tragedy.