Board Thread:TV Show Discussion/@comment-26944895-20180613002420/@comment-27795079-20180613024414

It was Robert himself who created the lie of Lyanna’s abduction. He did so because he was humiliated by the woman he was betrothed to jilting him for another man, and as a pretence for starting the rebellion (which many people wanted anyway).

Aegon would have been killed by Robert purely for being Rhaegar’s son. It had nothing to do with him being a product of supposed rape.