What Is The A Knight Of The Seven Kingdoms Release Window? A Knight of the Seven Kingdoms was officially ordered by HBO in 2023, and filmed in 2024. Dimitrios Kambouris/Getty Images Entertainment/Getty ImagesWhat Is Plot of A Knight Of The Seven Kingdoms? Season 1 of the series will presumably adapt the first book, The Hedge Knight, as the series itself was originally titled A Knight of the Seven Kingdoms: The Hedge Knight. Who Is In The Cast Of A Knight Of The Seven Kingdoms?