It could be argued that Daenerys Targaryen had the most tragic end of all. She was consumed by her power and grief, massacred thousands and then murdered by her lover / nephew Jon Snow.
After Jon hits his blade into her chest, she dies in his arms. But that is not the end of her journey. Drogon is inexplicably linked to her baby dragon and is asked to find his mother dead on the ground. Instead of killing Jon Snow, who killed Daenerys, Drogon melts the Iron Throne, which in the end has killed Dany in a romantic way.
Then Drogon takes Daenerys in his thick ass claw and flies away with his mother's body. But where is he going and why?
It is unclear at the moment, but later in the episode, someone mentions passively that Drogon was discovered in the East. We did not specify an exact destination, but it is very likely that Drogon flies to Essos, the origin of the Targaryen line in Old Valyria. As the Game of Thrones Wiki describes the origins of dragons:
Five thousand years ago, men of the Vatican Freehold learned how to rule and ride dragons as war animals, and used them to make dragons rich which stretched across most of the continent of Essos and ruled nearly half of the known world. Four hundred years before the Five Kings War, the entire Valyrian Empire and nearly all of its dragons were destroyed in a single day during a cataclysmic volcanic eruption known as the sinking of Valyria. A Taryraryen noble family survived the fate on Dragonstone's remote island outpost in the Narrow Sea, along with the last surviving Valirian dragons.
It seems rather poetic that Drogon would make the Queen of Dragons rest under their ancestors. It is also interesting that Drogon, who is still alive and on the loose, may be able to multiply. If Drogon can lay eggs, there could be more dragons. And since Jon is the only surviving one who can theoretically tame dragons ̵
What we do know is that Bran is in search of Drogon, which could lead to a fascinating discovery.