The Targaryen Blood Running Through Corlys Velaryon’s Veins in ‘House of the Dragon’
Corlys Velaryon towers over ‘House of the Dragon‘ as one of its most compelling figures, a man who built a house so wealthy it eclipsed even the Lannisters and commanded the largest navy in the world. Yet beneath all that glory sits a question that quietly underpins some of the show’s biggest mysteries: does the Sea Snake actually carry Targaryen blood in his veins?
The answer is yes, though the connection is far more layered and ancient than a casual viewer might assume. Corlys does have Targaryen ancestors, but they are distant, and the intermarriages between the two families stretch across many generations. Understanding just how that bloodline traces back requires a closer look at the deep roots shared between House Velaryon and the dragon lords of Old Valyria.
Corlys Velaryon’s Valyrian Bloodline and Its Origins
House Velaryon descends from Old Valyria just like the Targaryens, which is why the two families were such close allies throughout Westerosi history. However, House Velaryon was never a dragonlord family like the Targaryens, with the former house excelling at the sea instead. This shared continental origin gave both families their silver-white hair, pale violet eyes, and an affinity for the ancient world that set them apart from most Westerosi houses.

If the Velaryon stories can be believed, the family actually arrived in Westeros before the Targaryens, settling in Driftmark rather than the nearby Dragonstone. That detail is crucial because it establishes the Velaryons not as Targaryen dependents, but as peers with their own ancient claim to Valyrian prestige.
His character description for the series reads: “Lord of House Velaryon, a Valyrian bloodline as old as House Targaryen.” That framing from the show itself confirms the parity between the two houses, even if the Targaryens ultimately held the dragons and, with them, the Iron Throne.
The Targaryen Ancestry Hidden in the Family Tree
The first Velaryon character with incredible significance to the larger story is Valaena Velaryon, whose mother was a Targaryen. Valaena went on to marry Aerion Targaryen, and she was thus the mother of the three members of the historic House Targaryen who conquered Westeros, with her son Aegon the Conqueror becoming the first king to sit on the Iron Throne. This is the most dramatic crossover point between the two families in recorded history.
Lady Valaena Velaryon was herself half Targaryen on her mother’s side. So the bloodline ran in both directions even at that formative moment, blurring the line between Velaryon and Targaryen heritage long before the Dance of the Dragons ever began.
Aegon the Conqueror’s mother was born a Velaryon, and she was noted to have a Targaryen mother herself, which would be the most recent Targaryen in Corlys’ family, five generations before him. It is a distant echo of dragon blood, but according to the lore of ‘Fire and Blood,’ even distant echoes can carry weight.
What Corlys Velaryon’s Blood Means for Dragonriding
The Velaryons are Valyrian, but they have never had dragons themselves, at least not ones who didn’t also have Targaryen blood. This distinction matters enormously when examining how Corlys’s children and grandchildren became dragonriders in ‘House of the Dragon.’ His son Laenor and daughter Laena could claim dragons because of their mother, Rhaenys Targaryen, whose royal lineage was direct and undeniable.
Targaryens marry their siblings or other relations to “keep the blood of the dragon pure,” according to ‘Fire and Blood,’ which likely has to do with the blood magic rumored to be the source of their bond with dragons in the first place. The centuries of intermarriage between the two houses ensured that Velaryon blood and Targaryen blood were never entirely separate things.
That seems to be enough for dragonriding if blood is what matters, and it seems to be. The question of what truly qualifies someone to bond with a dragon has never been definitively answered by the show or the books, but Corlys’s family history keeps pushing that debate forward in fascinating ways.
The Bastard Sons and the Dragon Blood Question
With the reveal that Alyn and Addam are Corlys’ bastard sons, ‘House of the Dragon’ clears up a mystery about the importance of Valyrian blood. Season 2 made the show’s position on this paternity explicit, while the source novel left it deliberately ambiguous for readers to debate.
Addam claims the dragon Seasmoke, which was previously bonded with Laenor, which makes sense if he is Laenor’s son. Laenor and Laena ride dragons largely because of their mother’s Targaryen blood. Addam being Corlys’s son rather than Laenor’s complicates that explanation in ways that ripple through every assumption the show has built around dragonriding.
Corlys was seventy-nine years of age when he died, having served four kings and a queen, sailed to the ends of the earth, raised House Velaryon to unprecedented levels of wealth and power, married a princess who might have been a queen, and fathered dragonriders. That final detail, fathering dragonriders, carries a weight that only grows heavier the more one traces the bloodlines running through his family.
House Velaryon’s Place in the Targaryen Legacy
Lord Aethan Velaryon had a Targaryen wife, and Aethan’s daughter Alyssa was married to Prince Aenys Targaryen, heir to the throne, with whom she had six children. These repeated unions across generations kept the Velaryon and Targaryen family trees so intertwined that separating them becomes almost meaningless after a certain point.
After the Targaryens arrived with their dragons in Westeros, House Velaryon was a major ally in Aegon’s conquest, and the two families’ close relationship continued as the Targaryens married many Velaryons, which was partially due to the dragonriding family’s desire to keep their Valyrian blood pure. The Sea Snake himself was not just an ally to the Targaryens by politics or geography. He was connected to them by blood that had been passing back and forth between the two houses for generations.
Corlys Velaryon may never have ridden a dragon himself, but everything about his lineage, his children, his bastard sons, and the mysteries still unresolved in ‘House of the Dragon’ suggests that the blood of the dragon runs through him in ways that even the show has not yet finished exploring.
If you think Addam’s dragonriding proves that Velaryon blood alone is enough, or whether it still required that distant Targaryen thread to make it possible, share your theory because this is one of the most layered bloodline debates in the entire world of Westeros.

