Definitely not a true story. House of the Dragon is a work of imagination and creativity. It weaves a complex tale of power, politics, and dragons within a fictional realm.
Yes, 'House of the Dragon' is based on a true story. It is a prequel to 'Game of Thrones' and is set in the same fictional world of Westeros. It is based on George R. R. Martin's 'Fire & Blood', which chronicles the history of the Targaryen dynasty. The show takes many events and characters from this historical account and brings them to life on screen.