Game Of Thrones prequel House of The Dragon will start filming in April.
The update was given by HBO and HBO Max Chief Content Officer Casey Bloys.
The network previously announced the series is set 300 years before the events of Game of Thrones and charts the history of House Targaryen.
Details about the show remain a closely guarded secret although several leading characters have been cast.
Bloys said, “He’s got a lot of road maps in terms of history. So one of the great things about House of the Dragon is that it’s an established history that leads you to Game of Thrones the show, and there is a lot of little branches. There is a lot of opportunities and stories to tell.”
The fantasy drama is slated to debut on HBO Max sometime in 2022.
Ready Player One star Olivia Cooke has been cast in the 10-episode season. The British actress confessed she had never watched the hit HBO series when she first auditioned for House of The Dragon.