Rhaenyra Targaryen is murdered and eaten by Aegon II's dragon in the books. After Rhaenyra stole King's Landing from Aegon and sat on the Iron Throne for six months, the smallfolk of the city rose against her after an increase in taxes and the death of Aegon's wife and sister, Helaena Targaryen.
Turns out, Rhaenyra and Daemon are endgame, meaning they have a sexually tense relationship, eventually hook up, and get married—which is pretty significant from a power play perspective considering (1) they both want the throne and (2) their Targaryen union is almost sure to guarantee that happens—even though Alicent ...
Joffrey Baratheon spoils Rhaenyra Targaryen's fate on Game of Thrones. As Joffrey tells us, eventually, Rhaenyra's half-brother Aegon Targaryen will feed her to his dragon Sunfyre. She dies as her son, Aegon III, watches. That's the bullet point version.
The moment happens in season 3, episode 4, “And Now His Watch Is Ended,” when Joffrey Lannister is chilling with Margaery Tyrell and giddily explains, “Rhaenyra Targaryen was murdered by her brother, or rather, his dragon. It ate her while her son watched.
Eventually, Rhaenyra is killed, as is Aegon II, meaning both major claimants to the Iron Throne are dead. As Aegon had no heirs, the Iron Throne fell to Aegon III, Rhaenyra's firstborn son with Daemon Targaryen.
In George R.R. Martin's book Fire & Blood, we are told of the incident where Rhaenyra Targaryen's husband Laenor Velaryon dies while attending a fair in Spicetown, on the island of Driftmark. We learn he was “stabbed to death” by a knight in his father's service, his paramour Ser Qarl Quarry.
That's right, during the Oct. 2 episode of House of the Dragon, Rhaenyra (Emma D'Arcy) and Daemon (Matt Smith) stopped fighting their feelings for one another and finally got together. However, this was more than just an illicit liaison, as Rhaenyra and Daemon got married at the end of the episode.
As Joffrey puts it (a bit too gleefully), Rhaenyra is murdered by her brother's dragon. “It ate her while her son watched," he explains with a grin. "What's left of her is buried in the crypts right down there.”
Which dragon kills Rhaenyra? Rhaenyra Targaryen is killed by her half-brother Aegon II Targaryen when he cruelly feeds her to his dragon Sunfyre.
When finally did give birth to the baby, it is said that the child had a hole where her heart should have been, a tail, and scales for skin—a monster, as her mother had cursed her to be. Upon her death, Rhaenyra swore yet another vow. “She was my only daughter, and they killed her.
Aemond killed Rhaenyra's son after a dragon chase through the rain, before which Aemond laughed and tried to cut out Luke's eye. The pursuit culminated in Aemond losing control of his dragon, which brutally chomped Luke and his dragon.
Aegon II's quick but viscerally brutal slaying of Queen Rhaenyra doesn't seem to do her justice.
While this is a revelation in and of itself, this sequence also highlights the truth of Daemon and Rhaenyra - he is an abuser and she is his victim, albeit perhaps one who does not see herself as a victim.
After Daemon's first wife dies, he gets together with Laena Velaryon—who was initially suggested as a bride for King Viserys. They have two daughters. Meanwhile, Rhaenyra marries Laena's brother, Laenor Velaryon, and they have several kids.
In one of the scenes, Daemon is shown choking his wife, also the protagonist, Rhaenyra. Talking about the scene, Emma D'Arcy, who plays Rhaenyra, attributed Daemon's violence to grief over Viserys' death. Emma D'Arcy stated that they knew that the scene would mark a significant shift in their relationship.
With both Rhaenyra and Aegon gone, there's one clear person to inherit the throne: Rhaenyra's son Aegon, known as “Aegon the younger” in the books (her older sons had all died by this point).
According to the accounts of Septon Eustace, prior to her turning sixteen, Rhaenyra lost her virginity to her uncle, Prince Daemon, after he seduced her.
As for Rhaenyra Targaryen, she grew up believing she would rule Westeros. But when the time came, her enemies and family stole the crown from her. She answered with fire and blood and was destroyed by them. So while Rhaenyra may have been the first woman to claim the Iron Throne, she never ruled the Seven Kingdoms.
Rhaenyra Targaryen Takes the Iron Throne, but Only For a Moment. While the Green forces were away from King's Landing, they foolishly left the capital sparsely protected. That allowed Rhaenyra and Daemon to easily take the city, where she sat on the Iron Throne for half-a-year.
As the two dragons struggled in the Battle Above the Gods Eye, Daemon plunged from Caraxes, wielding his sword Dark Sister and stabbing it into Aemond's remaining eye. Both dragons crashed into the Gods Eye, and Vhagar drowned with Aemond's body still chained to the saddle while Caraxes died on the shore.
Aegon III Targaryen (131 AC to 157 AC)
He succeeded his uncle, Aegon II Targaryen, at the conclusion of the Dance of the Dragons, which saw the victorious supporters of his late mother Rhaenyra Targaryen install him on the throne.
While House Of The Dragon episode 4 showed Daemon was able to seduce Rhaenyra by kissing and undressing her, he couldn't fulfill the act due to impotence.
Daemon chokes Rhaenyra because he's angry, because he feels she's making the wrong decision, and probably even because she reminds him of his late brother.
We last saw her find out the truth in "We Light the Way" that Rhaenyra lost her virginity to Ser Criston Cole (Fabien Frankel).