House of the Dragon Premiere Date

What Is Dark Sister in House of the Dragon?

A guide that explains what Dark Sister is in House of the Dragon.

Weapons in George R. R. Martin’s A Game of Thrones are occasionally given names. The significance of that is a glimpse into the history of said weapons. For example, Brienne of Tarth names her Valyrian steel sword, given to her by Jaime Lannister, “Oathkeeper” after swearing an oath to find and protect Sansa Stark. Another sword with an interesting history is Dark Sister. But what is Dark Sister in House of the Dragon?

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What Is Dark Sister in House of the Dragon?

House of the Dragon Premiere Date

Dark Sister is a rare Valyrian steel longsword. Aside from Blackfyre, Dark Sister is best known as an heirloom of House Targaryen. In fact, Dark Sister has been wielded by many Targaryens in the past, even before Aegon’s Conquest, making the sword well over 100 years old.

One of the most notable owners of Dark Sister was Visenya Targaryen herself, sister to Aegon Targaryen, the Conqueror of Westeros. She wielded Dark Sister so effectively, it was essentially the reason the Kingsguard were founded.

In House of the Dragon, Dark Sister is in the hands of Daemon Targaryen (portrayed by Matt Smith), and made an appearance several times throughout the first episode of the first season.

However, by the time the War of the Five Kings begins, Dark Sister vanishes. It was last seen in the hands of Brynden Rivers, a Great Bastard of King Aegon IV Targaryen. For those who’ve watched the HBO series Game of Thrones, this character is better known now as the “Three-Eyed Raven.”

Now we end our history lesson on what Dark Sister is in House of the Dragon. For more on House of the Dragon, find out what King Viserys meant by lickspittle or why Alicent Hightower was sent into the king’s bed chambers.


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Brady Klinger-Meyers
Brady is a Freelance Writer at Twinfinite. Though he's been at the site for only a year, Brady has been covering video games, and the industry itself, for the past three years. He focuses on new releases, Diablo 4, Roblox, and every RPG he can get his hands on. When Brady isn't focused on gaming, he's toiling away on another short story.