House of the Dragon Seasons 3 and 4 in the Works, George R.R. Martin Says

George R.R. Martin revealed that planning for the third and fourth seasons of HBO

House of the Dragon': ASOIAF Prophecy Reveal Came From George R.R. Martin

Breaking News: George R.R. Martin's BIG Announcement, Winds of Winter Release

George R.R. Martin Reveals That HBO Is Already Planning Seasons 3 and 4 of House of the Dragon - Info3 - The future of news

A handy glossary of people and places for the 'Game of Thrones' spinoff : NPR

House of the Dragon Season 3 and 4 already under preparation? That's what author George R.R.

HBO Drama Chief Can't Imagine House of the Dragon Will be Less Than 4 Seasons: 'Could be More' - IGN

House Of The Dragon Seasons 3-4 Already Being Planned, George R.R. Martin Says - GameSpot

House of the Dragon, Wiki of Westeros

House of the Dragon's showrunner says 5 new dragons coming in season 2 - Polygon

The Rise of the Dragon: An Illustrated History of the Targaryen Dynasty, Volume One (The Targaryen Dynasty: The House of the Dragon): Martin, George R. R., García Jr, Elio M., Antonsson, Linda