"Game of Thrones" might be the most famous TV series of all time and the show has a huge fan following worldwide. The upcoming season will be last season of the show, which is expected to come up in 2019. There are many theories taking place on the internet regarding the show and one of them is the "dragon has three heads theory."

The official confirmation regarding Snow’s true identity was revealed in season 7. His emotional greeting with Dragon added the much-needed drama that seemed to be missing since the beginning of season 7 of “Game of Thrones,” as noted by Thrillist. In the finale episode, it was revealed that Jon Snow is not a bastard.

In fact, his parents Lyanna Stark and Rhaegor Targaryen got married in secret. This makes him the rightful heir to the Iron Throne.

Jon Snow: The true heir to the Iron Throne

This particular revelation made a couple of things clear. Not only is Snow the rightful heir to the Iron Throne, but he is also worthy of riding a dragon himself. It is not known yet which dragon actually belongs to him. Additionally, there are only two dragons left after one of them was sacrificed to the Knight King. Drogon undoubtedly belongs to Daenerys. There are chances that Daenerys might let Snow ride Rhaegal. The Mother of Dragons named this dragon after her father, while the other one is named after her brother.

The incest angle holds the potential of complicating things. The whole confusion behind, “who will ride the third dragon,” has led to the rise of “dragon has three heads,” theory.

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The fact that Jon Snow is also believed to be the The Prince That Was Promised adds more weight to his worthiness. If he actually turns out to be the prince, then he is the ultimate savior of Westeros. This prophecy also consists of a number of different interpretations.

Tyrion Lannister's role

Before one of the dragons was taken by the Night King and the army of the dead, it was believed that Tyrion Lannister would be the third rider of dragons. It is believed that the reason why Tyrion was subject to so much hatred by his family is that he is actually a bastard. His father is believed to be of Targaryen origin. As noted by Thrillist, theories suggest that his father might be Rhaegal. Since there are only two dragons left on Daenerys' side, the Tyrion Lannister theory remains out of question. The last season of the show might see the death of characters like Cersei and Daenerys Targaryen.