After months of speculation, HBO has finally confirmed that the Game of Thrones prequel A Knight of the Seven Kingdoms will debut in January 2026. 
🎬 Background & Delay
Originally slated for a late-2025 release, the show was pushed back during HBO’s scheduling updates.  During the 2025 Emmys, HBO’s Casey Bloys confirmed the new timeframe: “I’m going to say January. How about that?” 
Premise & Source Material
The series adapts George R.R. Martin’s “Tales of Dunk and Egg” novellas, set roughly 90 years before the events of Game of Thrones.  It follows Ser Duncan the Tall (a hedge knight known as “Dunk”) and his squire, Egg, who will later become Aegon V Targaryen. 
The first season is expected to cover The Hedge Knight, the inaugural novella in the Dunk & Egg series. 
Cast & Crew
Some of the confirmed cast and production details include:
• Peter Claffey as Ser Duncan the Tall (Dunk) 
• Dexter Sol Ansell as Egg (young Aegon V) 
Other names attached include Finn Bennett, Bertie Carvel, Daniel Ings, Sam Spruell, and more. 
On the creative side:
• Ira Parker is spearheading the series as creator / showrunner. 
• George R.R. Martin is deeply involved as executive producer. 
• Filming began in June 2024 in Belfast, Northern Ireland. 
Release & Context
The six-episode first season is set to debut on HBO (and streaming via HBO Max) in January 2026. 
Interestingly, this timing places the show just before the expected return of House of the Dragon Season 3 likely in early summer 2026. This scheduling means fans might get back-to-back fantasy programming from the same universe in one year.
