Who sent the assassin to kill Bran?

Related questions

1. Who does Ramsay marry in the books?
2. Will Ramsay Bolton die?
3. Does Sansa Stark marry Ramsay Bolton in books?
4. Who does Ramsay Bolton marry?
5. Did Stannis really die?
6. Does Ramsay Bolton die in season 6?
7. Does Wun Wun die?
8. Why did Theon betray the Starks?
9. Why is Theon with the Starks?

Tags

1. #dragon
2. #hired
3. #robert
4. #dagger
5. #strongly
6. #tyrion
7. #later
8. #assassination
9. #about
10. #wanting
11. #think
12. #wedding
13. #assassin
14. #hinted
15. #joffrey
16. #attempt
17. #orders
18. #during
19. #stole
20. #celebration
21. #impress