Samwell Tarly: Bran and I worked it out. I had a High Septon’s diary. Bran had… whatever Bran has.
Jon Snow: What are you talking about?
Samwell Tarly: Your mother… was Lyanna Stark. And your father… your real father was Rhaegar Targaryen. You’ve never been a bastard. You’re Aegon Targaryen, true heir to the Iron Throne.
From Game of Thrones – Season 8 Episode 1: ‘Winterfell’ (8×01)