New Game of Thrones play The Mad King has pretty much revealed the identity of the Prince that was Promised – though with a major twist.
Warning, the following contains spoilers for the new play, so turn back now if you don't want to know the details!
GamesRadar+ attended a performance of Game of Thrones: The Mad King, and we were treated to a major lore revelation.
The Prince that was Promised prophecy has increasingly become a huge deal in the Game of Thrones universe, and it was revealed in House of the Dragon season 1 that Aegon the Conqueror foresaw the Long Night and the threat of the White Walkers – and that a Targaryen would need to be seated on the Iron Throne to combat the danger.
However, the true identity of the Prince that was Promised is somewhat murky. It seemed fairly obvious thanks to the TV show that it would end up being either Jon Snow or Daenerys Targaryen – with more signs pointing towards Jon, considering Rhaegar Targaryen and Lyanna Stark are his parents – but ultimately, the Night King (an invention of the TV show) was defeated by Arya Stark.
The Mad King, however, has revealed more about the prophecy. King Aerys believes that the Prince that was Promised must be a third-born child, which explains the significance of "the dragon has three heads" (at least, as far as he interprets it, anyway). Rhaegar originally believes himself to be the Prince that was Promised, but, as a firstborn son, he is ruled out. He then believes his second-born child, a boy named Aegon, is the prophesied prince – though, when he declares this to be so, he sees Daenerys across time (Daenerys is in the House of the Undying Ones, watching the scene herself, as depicted in A Clash of Kings).
Later, after Lyanna Stark and Rhaegar Targaryen run away to the Tower of Joy together, a red comet appears in the sky. Both Lyanna and Aerys believe this to be an omen, and so they both rush to conceive children.
Aerys's wife, Rhaella, is cruelly abused by her husband, and so as the Kinsguard arrive to take her to him, she declares that she does not wish to birth the prophesied prince, but rather the "scourge of the world" and "a vengeful daughter, whose wrath will return dragons and set the realm ablaze." She ultimately gives birth to Daenerys Targaryen.
Lyanna, meanwhile, gives birth to Jon Snow. In the play, he is not named Aegon, and Rhaegar and Lyanna also do not seem to be married, meaning he's still a bastard (there is some ambiguity here, however).
So, both Jon and Daenerys are third-born children, meaning they both fit the prophecy. There is one caveat, however: Rhaella had multiple stillborn children or children who died in infancy before Daenerys. But the play is pretty emphatic about both Jon and Dany being third children born under the red comet.
So, it would seem both Jon and Daenerys are the Prince that was Promised… or only one of them is, and the other is a red herring. George R.R. Martin has been clear before that only the books are canon, though he was involved in the play, so we can treat this as at least semi-canon. But, we won't know for sure until (or if) George R.R. Martin finishes his books.
Game of Thrones: The Mad King is playing at the Royal Shakespeare Theatre from now until September 5, 2026. For more on the play, check out our guide to 16 things we learned about Game of Thrones from The Mad King.
You can keep up to date with the world of Westeros with our guide to all the upcoming Game of Thrones movies and TV shows.
