The announcement comes after the series opened to record-breaking viewing figures, becoming the biggest drama launch ever for Sky Atlantic.

Based on George R.R. Martin’s Fire & Blood, House of the Dragon is set 200 years before the events of Game of Thrones and tells of the beginning of the end of House Targaryen.

The opening episodes set the stage for the coming civil war as Paddy Considine’s King Viserys I Targaryen was tasked with choosing a successor out of his fiercely competitive heirs.

The heir presumptive was his younger brother Prince Daemon Targaryen (Matt Smith), but his firstborn, Princess Rhaenyra Targaryen (Emma D’Arcy), also had a claim.

To help you keep track of all the key players, we made a handy guide to all those doing the Dance of the Dragons here.

Zai Bennett, MD of Content at Sky, said: “House of the Dragon is already proving to be a ratings hit, and we predict it will go from strength to strength due to the captivating storytelling and incredible production values. We look forward to sharing a second series with our customers on Sky and NOW.”