Is Jon Snow Daenerys sister?

Related questions

1. What killed Balerion?
2. Which Dragon is John riding?
3. Which Dragon does Euron kill?
4. Does Rhaegal belong to Jon Snow?
5. Can male dragons lay eggs?
6. Can Dany's dragons lay eggs?
7. Does the other dragon die in Game of Thrones?
8. How long do dragons live in got?
9. Who killed Meraxes?
10. Which Dragon is Rhaegal?

Tags

1. #lyanna
2. #theory
3. #north
4. #stark
5. #sister
6. #actually
7. #instead
8. #bastard
9. #rhaegar
10. #surly
11. #known
12. #aegon
13. #targaryen
14. #given
15. #parents