As reported by IndieWire, via Puck, Miguel Sapochnik allegedly left behind his role as "House of the Dragon" showrunner due to a personal conflict with HBO over a producing role for his wife, Alexis Raben. Raben had appeared as Talya, a handmaiden to Queen Alicent (Olivia Cooke/Emily Carey) in four episodes and had also been a producer on Season 1 of the prequel as well.
Apparently, Sapochnik wanted Raben to once again be credited as a producer on Season 2, but HBO refused, declaring that Raben's lack of experience should disqualify her from returning in that capacity. This appears to have led to a conflict so severe that a mediator had to be brought in to settle the dispute between HBO and Sapochnik.
In any case, Ryan Condal, who was formerly a co-showrunner with Sapochnik, is now the sole showrunner for "House of the Dragon." For his part, Sapochnik was also responsible for directing some of the most memorable episodes of "Game of Thrones," including "Hardhome," "The Winds of Winter," and "The Long Night" (via IMDb), meaning his loss could definitely be a blow for the upcoming Season 2 of "House of the Dragon."
