If you don’t want anything spoiled about House of the Dragon or Game of Thrones, stop reading now. Queen Rhaenyra TargaryenHBO Emma D’Arcy as Queen Rhaenyra Targaryen. Rhaenyra (Emma D’Arcy) leads the Blacks (reflecting the color of House Targaryen) against her half-brother Aegon II. How is Daenerys Targaryen on Game of Thrones related to Rhaenyra Targaryen on House of the Dragon? House of the Dragon takes place roughly 200 years before the events of Game of Thrones, which means Daenerys is nowhere in sight.