It wasn't the first Game of Thrones spin-off idea
More Game of Thrones spin-off series are coming
House of the Dragon is based on the true story of the English Civil War, The Anarchy
The Events Depicted in House of the Dragon Are Loosely Based on a True Story
There are 17 dragons
!
The wigs and costumes aren't easy work for the cast
The First-Season Budget Is Higher Than Any Season of Game of Thrones
The Showrunners Couldn't Imagine Anyone Else as Daemon Targaryen