The Targaryen Belief in Immunity to Disease

The Targaryen Belief in Immunity to Disease was the conviction that the blood of Old Valyria made the ruling family resistant to illnesses that killed ordinary people. Grounded in a belief in the purifying fire of the dragon’s blood and reinforced by the wider Doctrine of Exceptionalism, it made a claim about more than health: Targaryens were thought to stand apart from other mortals. The Shivers’ deaths among the royal family, above all that of Princess Daenerys, turned this certainty into a crisis.

Origins and Scope

The belief was said to have been known since Aenar Targaryen first established his claim on Dragonstone. Targaryens, it was reasoned, did not die of pox or the bloody flux, nor succumb to redspots, brownleg, the shaking sickness, wormbone, clotted lung, sourgut, or the many other pestilences and contagions afflicting mortal men and women. The explanation was the fire in the dragon’s blood: a purifying force that burned disease away. This account presented immunity as an inherited quality of the dynasty, not simply as good fortune or a temporary protection.

The conviction formed part of a broader claim of difference. Targaryens were described as possessing the purple eyes and silver-and-gold hair of their Valyrian ancestry, and as rulers who rode dragons. In the logic of the Doctrine of Exceptionalism, they were not bound by the Faith of the Seven’s prohibitions against incest; the assumption that they also did not get sick extended that exceptional status from law and custom into the body itself. The belief did not merely distinguish the family from its subjects. It implied that their blood placed them nearer to the divine than ordinary people.

The Shivers at Dragonstone

The outbreak on Dragonstone tested the belief against observable events. Maester Culiper could not identify the disease. Its first sign was a bloody stool, followed by severe cramping in the gut, and he died less than two days after falling ill. Cassella Staunton, only fourteen, then succumbed. Septa Maryam, Alayne Royce, and Sam Stokeworth died within hours of one another on the same night. The illness struck down companions and household members while Rhaena Targaryen herself remained untouched.

Maester Anselm proposed that Rhaena’s Valyrian blood had protected her, and the contrast initially appeared to support the old explanation. The pattern was also striking by sex: aside from Culiper, those who fell ill were women, while the men of Dragonstone—including knights, scullions, stableboys, and singers—remained healthy. But this apparent confirmation could not settle what the disease meant. Rhaena’s survival stood alongside the deaths of those around her, and the later death of another Targaryen would show that survival in one case did not establish immunity for the family as a whole.

Rhaena ordered Dragonstone’s gates closed to keep the sickness from spreading beyond the island and protect the smallfolk. Jaehaerys Targaryen acted on her warning, ordering Lord Velaryon to send galleys to ensure that nobody escaped and carried the pestilence elsewhere. Lianna Velaryon died as the galleys were leaving Driftmark. Anselm’s efforts to treat her failed, and she died in Rhaena’s arms. These precautions and losses made the epidemic a matter of royal responsibility as well as private grief: the illness could not be explained away as a danger confined to people outside the ruling family.

Daenerys and the Collapse of Certainty

The death of Princess Daenerys made that contradiction unavoidable. A day and a half after waking her mother to complain of feeling cold, the child was dead. Jaehaerys had ordered Dragonkeepers on Dragonstone to bring a hatchling to the Red Keep, but the plan became unnecessary before it could answer the loss. Alysanne collapsed in the king’s arms; Jaehaerys went to Dragonstone himself to tell the Dragonkeepers not to bring the hatchling, then returned to King’s Landing and sought counsel from Septon Barth. He asked why the gods had taken his daughter, but Barth had no answer.

Thousands of parents, highborn and low, lost children to the Shivers that winter. For Jaehaerys and Alysanne, however, Daenerys’s death struck directly at the belief that their own family was protected. She was Targaryen on both sides, with what the account describes as pure Old Valyrian blood. If any child should have been safe according to the doctrine, it was she. Her death did not merely add another royal casualty to the epidemic; it supplied the clearest counterexample to the claim that Targaryens did not get sick.

The account emphasizes the reversal in plain terms: the princess had died shivering like a common child. As her parents mourned the daughter they loved, they also had to face what her death suggested about their dynasty. They might not be as close to gods as they had believed; in the end, they too might be only men. This is a crisis of interpretation as much as one of bereavement: the old explanation of immunity could no longer account for the evidence before them.

Exceptionalism and Its Limits

The belief in immunity belonged to a larger political and religious language of Targaryen difference, but it should not be confused with the public ceremonies that affirmed royal authority. At Aegon Targaryen’s coronations, a Valyrian steel circlet set with rubies, the dragon banner, anointing with the seven oils, and the acclamation of assembled lords and smallfolk made kingship visible and sacred. Later, the iron-and-ruby crown of Aegon the Conqueror marked Aegon II’s claim, while the crown of Jaehaerys the Conciliator was placed on Rhaenyra Targaryen. Such rites asserted dynastic legitimacy; Daenerys’s death, by contrast, tested a claim about the body that ceremony could not make true.

The image of dragons also carried power beyond the royal household. During the Shepherd’s uprising, a crowd marched toward the Dragonpit, where the royal dragons were kept. That threat does not itself establish what the rioters believed about Targaryen disease resistance, but it offers a sharp contrast: the dynasty’s dragons could signify sovereignty to its supporters and become targets of popular anger. The Shivers revealed a different limit from the threat to the dragons: the Targaryens’ inherited status could not guarantee protection from illness.

The evidence does not record a formal repudiation of the belief or a new rule replacing it. It does, however, show its strongest assertion brought into question by the death of a pureborn princess. The belief’s significance lies in that gap between inherited certainty and lived evidence. A doctrine that had helped define the Targaryens as exceptional could survive as an idea, but Daenerys’s death made its promise of invulnerability impossible for her parents to accept without doubt.