Which dragons died in Game of Thrones?

Related questions

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

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15. #alive
16. #night