Not only do we have what the Targaryen family tree looked like at the start of Season 1, but also we've got the update to keep things straight after the Season 1, episode 6 time jump.

So it's certainly possible that a person needs very little Targaryen blood—or no Targaryen blood at all—to successfully ride a dragon. We just won't know until someone tries.

The journey of Daenerys Stormborn of House Targaryen, the First of Her Name, Queen of the Andals and the First Men, Protector of the Seven Kingdoms, Mother of Dragons, Khaleesi of the Great Grass ...

Daenerys Targaryen is known for having a plethora of titles in Game of Thrones. Here's what each one means and where she got it in the story.