Warning: This post contains spoilers for season seven of Game of Thrones. Not only did Jon Snow get up close and personal with one of Daenerys Targaryen’s dragons for the first time in Sunday’s episode of Game of Thrones, but the show also appeared to slip in another major clue about his family tree. The season six finale — along with a HBO infographic — seemed to confirm that Jon was not actually the illegitmate son of Ned Stark but rather the child of Ned’s sister Lyanna and Rhaegar Targaryen.