Why is Jon Snow also named Aegon?

Related questions

1. Are Jon Snow and Daenerys in love?
2. Did aerys targaryen have dragons?
3. What does khaleesi say to Dragon?
4. Is Jon Snow khaleesi's brother?
5. Why is Daenerys Targaryen called Daenerys Stormborn?
6. What does Dragon Queen mean?
7. Could Jon Snow be a Baratheon?
8. Is Aegon really a Targaryen?
9. How old was rhaegar targaryen when Daenerys was born?
10. What's the meaning of khaleesi?

Tags

1. #turned
2. #first
3. #after
4. #named
5. #couldn
6. #rhaegar
7. #something
8. #found
9. #dragon
10. #mountain
11. #aegon
12. #ended
13. #birth
14. #knight
15. #third
16. #lyanna
17. #other