'Game of Thrones' Spinoff 'A Knight of the Seven Kingdoms' to Air in 2025

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• The series will chronicle the adventures of Ser Duncan the Tall, a lowborn hedge knight who goes on to become Lord Commander of the Kingsguard, and his young squire Aegon V Targaryen, the future king.
• Casting is already underway, with insiders hinting that Gwendoline Christie and Emilia Clarke are top contenders to reprise their 'Game of Thrones' roles as Brienne of Tarth and Daenerys Targaryen, respectively.