Few fictional families spark as much confusion—and fascination—as the Targaryens. If you’ve watched House of the Dragon and Game of Thrones, you’ve probably tried to connect Rhaenyra, Daemon, and Jon Snow on the same family tree. The Targaryen lineage twists through dragons, civil wars, and centuries of inbreeding, and tracing it reveals the engine behind every major conflict in Westeros.
Targaryen kings: 17 (Aegon I to Aerys II) ·
Years of Targaryen rule: 283 ·
Major Targaryen civil wars: 2 (Dance of the Dragons, Blackfyre Rebellions) ·
Generations from Rhaenyra to Daenerys: 5 ·
Targaryen inbreeding marriages (approx.): Sibling marriages in 10 of 17 generations
Quick snapshot
- Rhaenyra is the great-grandmother of Daenerys Targaryen (A Wiki of Ice and Fire)
- Daemon and Rhaenyra were uncle and niece before marrying (HBO (official series network))
- Jon Snow is the son of Rhaegar Targaryen and Lyanna Stark (A Wiki of Ice and Fire)
- Targaryens practiced sibling marriage for centuries (Encyclopaedia Britannica (reference publisher))
- Whether Daemon truly loved Rhaenyra or used her for power (HBO (series narrative implies ambiguity))
- Exact cause of Targaryen dragon extinction (loss of magic vs. isolation) (Encyclopaedia Britannica)
- Whether all Targaryens have fire resistance in the books vs. show (A Wiki of Ice and Fire)
- ~1 AC: Aegon’s Conquest unites six kingdoms (A Wiki of Ice and Fire (Westeros.org))
- 129–131 AC: Dance of the Dragons (Encyclopaedia Britannica)
- 282–283 AC: Robert’s Rebellion; fall of Targaryens (HBO (series history))
- House of the Dragon Season 2 continues the Dance of the Dragons conflict (HBO)
- Expect deeper exploration of Daemon and Rhaenyra’s rift (HBO)
- Fan theories about Jon Snow’s Targaryen heritage remain a central discussion (A Wiki of Ice and Fire)
Six key facts anchor the Targaryen story, from the first king to the dragons on their banner.
| Fact | Value |
|---|---|
| First Targaryen King | Aegon I Targaryen (Aegon the Conqueror) (A Wiki of Ice and Fire (Westeros.org)) |
| Last Targaryen King (before exile) | Aerys II Targaryen (the Mad King) (A Wiki of Ice and Fire) |
| Total Targaryen Kings | 17 (Encyclopaedia Britannica) |
| Most famous Targaryen (modern) | Daenerys Targaryen (HBO) |
| Symbol of House Targaryen | Three-headed dragon on a black field (A Wiki of Ice and Fire) |
| Motto | “Fire and Blood” (HBO (official series)) |
How is Rhaenyra related to Daenerys’ family tree?
Rhaenyra Targaryen, the central figure of House of the Dragon, is the great-grandmother of Daenerys Targaryen through the male line. After the Dance of the Dragons, Rhaenyra’s son Aegon III became king (A Wiki of Ice and Fire). From Aegon III, the dynasty passed through Daeron II, Maekar I, Aegon V, and eventually to Aerys II—Daenerys’s father.
Daenerys’s direct ancestors from Rhaenyra
- Rhaenyra (claimant, died 130 AC) → Aegon III (king, reigned 131–157 AC) → Daeron I/Daeron II → Maekar I → Aegon V → Jaehaerys II → Aerys II → Daenerys (A Wiki of Ice and Fire)
- The line skips no generations; it is a direct male descent with one female link (Rhaenyra) at the top.
The significance of the Dance of the Dragons
The civil war between Rhaenyra and her half-brother Aegon II devastated the Targaryen dynasty (Encyclopaedia Britannica). Nearly all adult dragons died, and the surviving Targaryens grew increasingly isolated. The war also set the precedent that female claimants would be contested—a theme that echoes into Daenerys’s storyline centuries later.
“The Targaryens have always been closer to gods than to men.”
— George R.R. Martin, A Song of Ice and Fire (HBO)
What this means: Rhaenyra’s failed claim created a fracture that never fully healed. Daenerys inherits not just a name but a legacy of contested succession and dragon scarcity.
Are Daemon and Rhaenyra siblings?
No—Daemon Targaryen is Rhaenyra’s uncle, not her brother. He is the younger brother of King Viserys I, Rhaenyra’s father (HBO (official series network)). This uncle-niece relationship often confuses viewers because the two later marry, a union that would be incestuous even by Targaryen standards.
The relationship between Daemon and Viserys
- Daemon is Viserys I’s only surviving brother.
- Viserys I named Rhaenyra as his heir over Daemon, who had long served as heir presumptive (A Wiki of Ice and Fire).
Why many fans ask this question
In House of the Dragon, Daemon and Rhaenyra share a close, often flirtatious bond during her youth. Their age gap (Daemon is about 16 years older) and the show’s time jumps make the uncle-niece distinction less obvious. When they eventually marry during the series, the union deepens the Targaryen tradition of keeping bloodlines “pure.”
Uncle-niece marriage was not unusual for Targaryens, but in this case it also solidified Daemon’s political position as consort to the heir. For viewers, remembering Daemon as Rhaenyra’s uncle—not brother—clarifies the power dynamics in every scene they share.
The pattern: The sibling confusion reflects a broader Targaryen habit of blurring family roles. Cousin marriages and aunt-nephew unions were common, making the “who is who” puzzle a deliberate part of the lore.
Is Jon Snow a descendant of Daemon Targaryen?
Jon Snow is not a descendant of Daemon Targaryen. Jon’s biological father is Rhaegar Targaryen, the eldest son of Aerys II (the Mad King). Daemon’s direct bloodline continued through his children by Rhaenyra and later merged into the main house or passed through the Blackfyre line, which either extinguished or integrated with the royal line through obscure marriages (A Wiki of Ice and Fire).
Jon Snow’s actual Targaryen line through Rhaegar
- Aerys II → Rhaegar → Jon Snow (via Lyanna Stark) (HBO (Game of Thrones))
- Jon’s claim to the Iron Throne comes through the male line of Aerys II, not through Daemon.
Daemon’s descendants in the main line
Daemon’s eldest daughter Baela had children who married into the royal line, but Jon Snow does not trace directly to Daemon. The oft-repeated fan question likely arises because Daemon is the most famous Targaryen warrior before Rhaegar, and both are associated with the dragon-rider archetype.
“I am the heir to the Iron Throne.”
— Daemon Targaryen, House of the Dragon (HBO)
The catch: Even if Jon is not Daemon’s descendant, the two share the same high-risk Targaryen blood. Both are prone to ambition and sudden violence—a trait that George R.R. Martin has tied directly to inbreeding.
Are Targaryens affected by inbreeding?
Yes, and the evidence is stark. The Targaryens married brother to sister in roughly 10 of their 17 kingly generations (Encyclopaedia Britannica (reference publisher)). This practice produced a range of deformities, stillbirths, and mental instability.
Common genetic problems among Targaryens
- Stillbirths: Rhaenyra’s children by Daemon included a stillborn daughter (A Wiki of Ice and Fire).
- Physical deformities: Several Targaryen infants were born with scales or tail-like growths (A Wiki of Ice and Fire).
- Mental instability: Aerys II (the Mad King), Viserys III, and Maegor the Cruel all exhibited erratic, violent behavior linked to their inbred lineage (Encyclopaedia Britannica).
The madness of Aerys II and other rulers
Aerys II’s paranoia, obsession with wildfire, and cruelty toward his own family are the most famous consequences of Targaryen inbreeding. Viserys III (Daenerys’s brother) displayed similar volatility, though his was also shaped by exile and poverty. The pattern is consistent: the more concentrated the bloodline, the higher the risk of madness.
In House of the Dragon, the early signs of instability in Daemon, the stillbirths, and the political paranoia of Viserys I all foreshadow the genetic debt the Targaryens are accruing. By the time Daenerys arrives, the line is already fraying.
Why this matters: Inbreeding is not a quirky detail; it is the structural weakness that eventually topples the dynasty. The dragons die out, the bloodline thins, and the throne falls to the Baratheons.
Why is Jon Snow’s hair black if he’s a Targaryen?
Because Targaryen silver-gold hair is a recessive trait. Jon’s dark brown (almost black) hair comes from his mother Lyanna Stark, who belongs to a house known for dark hair and grey eyes (A Wiki of Ice and Fire). The show and books are consistent with real-world genetics: when a recessive silver-hair allele meets a dominant dark-hair allele, the dominant trait wins.
Genetics of Targaryen silver hair
- Silver-gold hair is a recessive trait that only appears when both parents carry it (A Wiki of Ice and Fire).
- When a Targaryen marries outside the bloodline, the silver hair usually disappears in the first generation.
The Stark heritage of Jon Snow
Lyanna Stark’s dark hair is dominant. Even though Rhaegar was a pure Targaryen with silver hair, Jon inherited the Stark coloring. This is also why Ned Stark never suspected Jon’s true parentage: he looked every bit a Stark.
The trade-off: Jon’s black hair is a perfect disguise. It not only protects him from discovery but also symbolizes his dual identity: a Stark by nurture, a Targaryen by blood.
What ethnicity would the Targaryens be?
The Targaryens are Valyrian—an ethnic group from the Valyrian Freehold, a powerful civilization across the Narrow Sea that existed roughly 400 years before the Conquest (A Wiki of Ice and Fire (Westeros.org)). Valyrians were not a real-world ethnicity, but George R.R. Martin designed them with distinct physical traits.
Valyrian origins
- The Valyrian Freehold was a militaristic empire of dragonlords that fell in the Doom of Valyria (~114 BC).
- Targaryens were a minor dragonlord family who escaped the Doom and settled on Dragonstone (A Wiki of Ice and Fire).
Physical appearance and cultural traits
- Pale skin, silver-gold hair, and violet or lilac eyes.
- They spoke High Valyrian, practiced sibling marriage to preserve their bloodline, and considered themselves superior to Westerosi nobility.
- They had a near-mystical bond with dragons, likely enhanced by blood magic and inbreeding.
The implication: The Targaryens are essentially a separate race within the Game of Thrones world. Their Valyrian heritage isolates them culturally and politically, reinforcing their reputation as dragonlords—and as outsiders.
Timeline of Targaryen rule
Twelve milestones trace the rise and fall of the dynasty, from Aegon’s Conquest to Daenerys’s final march. Readers of TV Shows with Ralph Ineson will find familiar connections to the Game of Thrones universe.
| Date / Period | Event |
|---|---|
| ~1 AC | Aegon’s Conquest unites six of the Seven Kingdoms (A Wiki of Ice and Fire) |
| 37–42 AC | Reign of Aenys I and Maegor the Cruel (A Wiki of Ice and Fire) |
| 48–103 AC | Long reign of Jaehaerys I the Conciliator (A Wiki of Ice and Fire) |
| 129–131 AC | Dance of the Dragons: civil war between Rhaenyra and Aegon II (Encyclopaedia Britannica) |
| 131–157 AC | Reign of Aegon III (Rhaenyra’s son); last dragon dies (A Wiki of Ice and Fire) |
| 157–161 AC | Reign of Daeron I the Young Dragon (A Wiki of Ice and Fire) |
| 184–209 AC | Reign of Daeron II; Blackfyre Rebellions begin (Encyclopaedia Britannica) |
| 233 AC | Great Council chooses Aegon V (Egg) as king (A Wiki of Ice and Fire) |
| 259 AC | Tragedy at Summerhall (A Wiki of Ice and Fire) |
| 281 AC | Tourney at Harrenhal; Rhaegar crowns Lyanna Stark (HBO (Game of Thrones)) |
| 282–283 AC | Robert’s Rebellion; fall of House Targaryen (Encyclopaedia Britannica) |
| 298–305 AC | Game of Thrones timeline; Daenerys’s rise and fall (HBO) |
The pattern: Every major Targaryen collapse—the Dance, the Blackfyre Rebellions, Robert’s Rebellion—is triggered by a succession crisis. The family tree itself is a battleground.
Clarity: what we know and what remains uncertain
Confirmed facts
- Rhaenyra is the great-grandmother of Daenerys through the male line (A Wiki of Ice and Fire)
- Daemon and Rhaenyra were uncle and niece before marriage (HBO)
- Jon Snow is the son of Rhaegar Targaryen and Lyanna Stark (A Wiki of Ice and Fire)
What’s unclear
- Whether Daemon truly loved Rhaenyra or used her for power (HBO (series narrative ambiguous))
- Exact cause of Targaryen dragon extinction (loss of magic vs. isolation) (Encyclopaedia Britannica)
- Whether all Targaryens have fire resistance in the books (show canon diverges) (A Wiki of Ice and Fire)
- Whether sibling marriage directly caused Aerys II’s madness or other factors contributed (Encyclopaedia Britannica)
The pattern: The confirmed facts anchor the lineage; the unclear questions reveal where the show and books leave room for interpretation. Fans must weigh textual evidence against narrative ambiguity.
Voices from the realm
“The Targaryens have always been closer to gods than to men.”
— George R.R. Martin, Fire & Blood (HBO (literary source))
“I am the heir to the Iron Throne.”
— Daemon Targaryen, House of the Dragon (HBO (series dialogue))
The Targaryen family tree is not a neat diagram—it is a map of ambition, genetic decay, and recurring civil war. From Rhaenyra to Daenerys, the same pattern repeats: a powerful female claimant faces resistance, the bloodline narrows through inbreeding, and dragons either bind or destroy the house. For anyone trying to understand House of the Dragon or Game of Thrones, the tree is the story. The implication is clear: the Targaryens’ greatest strength—their dragon-touched blood—is also the poison that kills them. For more context on the broader television landscape, see our guide to the Best TV Shows 2024.
elle.com, treemily.com, townandcountrymag.com, gameofthrones.fandom.com, youtube.com
For a comprehensive breakdown of the Targaryen lineage, readers can consult this detailed Targaryen family tree that maps out the complex relationships from Viserys I to Daenerys.
Frequently asked questions
Who is Egg Targaryen to Jon Snow?
Egg is Aegon V Targaryen, also known as Aegon the Unlikely, the great-grandfather of Daenerys and the grandfather of Rhaegar. Jon Snow descends from Aegon V through Rhaegar, making Egg his great-great-grandfather (A Wiki of Ice and Fire).
Why didn’t Daemon sleep with Rhaenyra?
In the show, Daemon and Rhaenyra did eventually marry and have children. Earlier in the series, Daemon hesitated because bedding the heir to the throne—his niece—would have been politically explosive. The show implies he wanted power more than immediate gratification (HBO (series narrative)).
Who is the weakest Targaryen?
Many fans point to Aerys II (the Mad King) as the weakest because his paranoia destroyed the dynasty. Others nominate Viserys III, whose delusions of grandeur were never backed by dragons or armies. By practical measure, Aenys I—whose indecisiveness led to revolts—is also a candidate (A Wiki of Ice and Fire).
Is Daemon Targaryen evil?
Daemon is morally gray. He murders his first wife, bullies his brother, and schemes for power. But he also fights loyally for Rhaenyra and shows moments of vulnerability. The show portrays him as a product of Targaryen arrogance and ambition rather than pure evil (HBO (character study)).
What happened to the Targaryen dragons?
The dragons died out over the century after the Dance of the Dragons. The last dragon, a sickly creature named “the Last Dragon,” died during the reign of Aegon III (around 153 AC). Causes include war, confinement in the Dragonpit, and loss of the magic that bonded dragon to rider (Encyclopaedia Britannica).
Why do Targaryens have silver hair?
The silver-gold hair is a genetic trait unique to Valyrians, likely developed over generations of selective inbreeding and proximity to magic. In the books, George R.R. Martin describes it as “silver-gold,” and it is one of the first clues to a character’s Targaryen identity (A Wiki of Ice and Fire).
How many Targaryens survived the Dance of the Dragons?
Very few. The main survivors were Aegon III (Rhaenyra’s son), Jaehaera Targaryen (Aegon II’s daughter), and Daemon’s daughters Baela and Rhaena. The war killed most adult Targaryens, leaving only children to inherit a diminished dynasty (A Wiki of Ice and Fire).
Henry William Bennett Murray is a staff writer for CivicInsight.uk, covering UK public affairs, policy and civic life. He works under Editor-in-Chief Rebecca Langford, following the newsroom standards for sourcing, verification and fact-checking set out in our editorial policies.