House of the Dragon is an American fantasy drama television series. A prequel to Game of Thrones (2011–2019), it is the second show in the franchise, created by George R. R. Martin and Ryan Condal for HBO. Both series are based on the A Song of Ice and Fire novels by Martin. Condal and Miguel Sapochnik are the showrunners. Based on parts of the novel Fire & Blood, the series is set about 200 years before the events of Game of Thrones, and 172 years before the birth of Daenerys Targaryen. It portrays the beginning of the end of House Targaryen, the events leading up to and covering the Targaryen war of succession, known as the "Dance of the Dragons".