Warning: This post contains spoilers for House of the Dragon.

Which blonde dragon-rider will rule the Seven Kingdoms? That is the question at the heart of House of the Dragon, the Game of Thrones prequel that tells the story of how a civil war—often called the Dance of the Dragons—pitted Targaryen against Targaryen nearly 200 years before the events of Thrones.

The rules of succession in Westeros are complicated and a bit fungible. One king may decide to pass over a female heir in favor of a man, while another may upend that tradition, just one generation later.

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When House of the Dragon…