Question: jon snow is not aegon?
Answer: Aegon is killed by Gregor Clegane in front of his mother. Aegon Targaryen was the son of Crown Prince Rhaegar Targaryen and Princess Elia Martell. He had an older sister, Rhaenys Targaryen, and a younger paternal half-brother also named Aegon but raised under the name, Jon Snow.