Everything you need to know about ‘House of the Dragon’

The “Game of Thrones” spinoff series, “House of the Dragon,” premieres Sunday, Aug. 21 at 9 p.m. on HBO and HBO Max

Set around 200 years before the events of “Game of Thrones,” it follows the Targaryen family (Daenerys and Jon Snow’s ancestors) through a civil war

This show is based on George R.R. Martin’s book “Fire & Blood,” which chronicles the (fictional) history of the Targaryens.

The basic story is a civil war between Princess Rhaenyra Targaryen and her half-brother, Aegon II, over which one of them will succeed their father, Viserys I, to the throne

This is the world of Westeros with many familiar visuals from “Game of Thrones,” but instead of jumping around to all corners of it, we’re focused on King’s Landing

The key figures are King Viserys I (Considine); his scheming brother Daemon (Matt Smith) and the king’s daughter, Rhaenyra (Alcock and D’Arcy),

who is a little too close with her Uncle Daemon, and who is trying to be the first woman on the Iron Throne long before her descendent, Daenerys.