The Complete Guide to All 21 Major Houses on Game of Thrones

Location: Dragonstone, traditionally
Motto: "Fire and Blood"
Sigil: Three-headed red dragon on a black background
Major members:

• Daenerys Targaryen, sole surviving child of Aerys, the "Mad King." The Mother of Dragons, among other titles
• Viserys Targaryen, brother to Daenerys. Killed by Khal Drogo in season one — Deceased
• Rhaegar Targaryen, brother to Daenerys and Viserys, but killed by Robert Baratheon — Deceased

Why They Matter:
The Targaryens were the main ruling family in Westeros before Robert's Rebellion unseated the Mad King Aerys and cast out his children. Daenerys has been vowing to take the Iron Throne back in the name of her family for seasons — which she may do next season when she gets to Westeros.