Game of Thrones Prequel Play in the Making for Broadway, West End and Australia

George RR Martin is developing a play for Broadway, West End and Australia, that is set 16 years before the events in Game of Thrones.

source https://www.news18.com/news/movies/game-of-thrones-prequel-play-in-the-making-for-broadway-west-end-and-australia-3591878.html