Question: who is aegon in the books?
Answer: Prince Aegon Targaryen, also known as the Young Griff is a major character in the fifth, sixth, seventh and eight seasons. He was believed to be the only living child of Prince Rhaegar Targaryen and Princess Elia Martell of Dorne. He was believed to be the rightful King of the Andals and direct heir to the Iron Throne.