Quick answer: Daemon Targaryen was the younger brother of King Viserys I, the uncle and husband of Rhaenyra Targaryen, and the father of two future kings. He’s the junction point where House of the Dragon’s whole messy family converges — find him at the center of the Dance-era Targaryen family tree.

Born 81 AC
Died 130 AC, over the God’s Eye — mid-duel, mid-air, mid-legend
Parents Prince Baelon Targaryen & Princess Alyssa
Sibling King Viserys I (older brother)
Wives Rhea Royce · Laena Velaryon · Rhaenyra Targaryen (his niece)
Children Baela & Rhaena (with Laena) · Aegon III & Viserys II (with Rhaenyra)
Dragon Caraxes, the Blood Wyrm

Who Was Daemon Targaryen?

Every royal family has one: the brother who’s too dangerous to trust and too useful to exile. Daemon was Jaehaerys the Conciliator’s grandson, wielder of the Valyrian steel sword Dark Sister, rider of the Blood Wyrm, and — depending on which maester you ask — the most dangerous man alive for about thirty years running.

He was also, not coincidentally, the only person in the Red Keep who seemed to be having any fun. Daemon commanded the City Watch of King’s Landing and turned a corrupt rabble into his personal army — the gold cloaks, named for the cloaks he gave them, loyal to him first and the throne second. The smallfolk of Flea Bottom called him “Lord Flea Bottom” and “the Prince of the City.” He returned the affection. This was a man who could make an arrest or start a party with equal enthusiasm, and the capital loved him for it.

The court did not. Otto Hightower spent two decades trying to get Daemon as far from power as possible, and honestly? Fair.

“Heir for a Day”

Daemon’s relationship with his brother Viserys was the axis of his whole life. As the king’s only brother, Daemon was heir presumptive for years — right up until he made one joke too many. When Viserys’s infant son Baelon died a day after being named heir, Daemon toasted the boy as “the heir for a day.” Viserys heard about it. Daemon was stripped of his place in the succession, and the wound between the brothers never fully healed.

Everything Daemon did afterward — the wars, the wives, the scheming — reads like a man trying to build his own throne after being denied the one he was born next to.

The Stepstones: A King of His Own Making

Denied a crown in King’s Landing, Daemon went and took one. From 106 AC he waged a private war in the Stepstones alongside Corlys Velaryon against the Triarchy and their general, Craghas Drahar — the “Crabfeeder,” whom Daemon personally carved in half.

By 109 AC, Daemon was crowned King of the Stepstones and the Narrow Sea, wearing a crown of his own making. Then, in the most Daemon move imaginable, he got bored of it, sailed home, and knelt to offer the crown to his brother. The two embraced. It lasted about a year before the next falling-out, because of course it did.

Three Marriages, One Family Tree Nightmare

Daemon’s love life needs a diagram, which — fortunately — we have:

  1. Rhea Royce of Runestone, a marriage arranged for politics and despised by both. She died in a hunting accident in 115 AC; Daemon immediately began circling her inheritance like a man who had definitely not been waiting for it.
  2. Laena Velaryon, daughter of the Sea Snake — this one appears to have been genuine. They flew the Free Cities together on dragonback and had twin daughters, Baela and Rhaena. Laena died in 120 AC after a brutal labor, choosing a dragon’s fire over a birthing bed.
  3. Rhaenyra Targaryen. His niece. Within months of both being widowed. The court was scandalized; the two of them appeared not to care even slightly. Their sons: Aegon III and Viserys II — both future kings.

Yes, uncle and niece. Yes, it’s the Targaryens. Yes, there’s a whole separate post on how this family’s marriages work. Moving on.

The Dance of the Dragons

When Viserys died in 129 AC and the greens crowned Aegon II over Rhaenyra, Daemon became the blacks’ greatest weapon — their field commander, their terror, and eventually their liability. He took Harrenhal without shedding a drop of blood (the castle just… opened for him), orchestrated the war in the riverlands, and avenged little Lucerys by arranging the Blood and Cheese murder of Aegon II’s son — an act so monstrous it poisoned Rhaenyra’s cause even as it satisfied her grief.

Their marriage cracked under the war. When rumors reached Rhaenyra that Daemon had been unfaithful with the dragonrider Nettles, whatever remained between them burned away.

Death at the God’s Eye (130 AC)

And so to the ending, which is — no exaggeration — the single most metal death in the entire legendarium. In 130 AC, Daemon flew Caraxes to Harrenhal and waited thirteen days for Aemond Targaryen and Vhagar, the largest living dragon, to come meet him.

They met over the God’s Eye. The dragons grappled in midair, locked together, falling — and as they fell, Daemon climbed out of his saddle, leapt across the gap between the two beasts, and drove Dark Sister through Aemond’s one good eye. All four of them — two dragons, two princes — plunged into the lake.

Caraxes, mortally wounded, crawled to the shore to die beneath the walls of Harrenhal. Aemond’s body was found years later, still in his saddle, Dark Sister through his skull.

Daemon’s body? Never found. Draw your own conclusions. The singers certainly have.

What Happens to Daemon in HOTD Season 3

Short answer: Daemon is alive at the end of House of the Dragon Season 3 (June 21 – August 9, 2026). The show has not yet reached the God’s Eye duel the books use to end him.

Known (Season 3, eight episodes): Daemon spends the season as Rhaenyra’s enforcer and sword-arm. He is sent to find the rider of Sheepstealer, tracks the dragon down with Caraxes, and ends up deceiving Rhaenyra to protect his own daughter. In the finale, “The Treasons at Tumbleton,” he refuses Daeron and Gwayne Hightower’s offer to divide the realm and is persuaded by Corlys Velaryon to retreat.

Episode 2Learns Jacaerys is dead; is asked to find Sheepstealer’s rider
Episode 4Caraxes leads him to Rhaena and Sheepstealer
Episode 7Tracks Rhaena again; justifies deceiving Rhaenyra to protect her
Episode 8Refuses to divide the realm; retreats from Tumbleton at Corlys’s urging

Unknown: Whether the show will give Daemon the same death the book does. Fire & Blood places it in 130 AC, above the God’s Eye (see above), but the show has altered several Dance-era events. Season 4 was ordered in November 2025 as the final season; no premiere date has been announced as of October 2026. For the wider war, see our House of the Dragon family tree hub and who won the Dance of the Dragons.

The Nettles Question: Book vs. Show

In Fire & Blood, Sheepstealer is claimed by Nettles, a low-born dragonseed with no known Targaryen blood, who ends up in Daemon’s company during the hunt for Aemond (some of the book’s narrators hint at a romance, which the text never confirms). The show does something different: Season 3 gives Sheepstealer to Rhaena, Daemon’s own daughter, and Nettles has not appeared. Daemon’s “find the rider” mission therefore becomes a test of loyalty between his wife and his daughter, a storyline with no book equivalent. Whether Nettles appears in Season 4 is unknown.

Daemon’s Place in the Family Tree

        Baelon ═ Alyssa
             │
     ┌───────┴────────┐
  Viserys I        Daemon ═ (1) Rhea Royce
     │                  ═ (2) Laena Velaryon → Baela, Rhaena
  Rhaenyra ════════════ ═ (3) Rhaenyra (his niece)
                            │
                     Aegon III, Viserys II
                     (every later Targaryen
                      descends from this pair)

That last line is the kicker: the entire surviving dynasty — every king, down to the Mad King, Rhaegar, and Daenerys — descends from Daemon and Rhaenyra. The Rogue Prince lost every fight for the throne and won the only one that mattered. See it on the full interactive tree.

FAQ

How is Daemon Targaryen related to Rhaenyra?

He was her uncle (younger brother of her father Viserys I) and her third husband. Their sons Aegon III and Viserys II both became king, which means Daemon is the ancestor of every later Targaryen.

How did Daemon Targaryen die?

In 130 AC, duelling Aemond above the God’s Eye: as Caraxes and Vhagar fell locked together, Daemon leapt onto Vhagar and put Dark Sister through Aemond’s eye. All four crashed into the lake. Daemon’s body was never recovered.

How many wives did Daemon Targaryen have?

Three: Rhea Royce (annulled after her death), Laena Velaryon (mother of Baela and Rhaena), and Rhaenyra Targaryen (mother of Aegon III and Viserys II).

What dragon did Daemon ride?

Caraxes, called the Blood Wyrm — a lean, scarlet, notoriously bad-tempered dragon. Perfect match.

Is Daemon related to Daenerys?

Direct ancestor. Daenerys descends from Daemon and Rhaenyra through Aegon III’s line — roughly ten generations later.

What happens to Daemon Targaryen in House of the Dragon Season 3?

Daemon survives. He hunts for Sheepstealer’s rider, finds his daughter Rhaena in the role the books give to Nettles, and retreats from Tumbleton in the finale. His book death at the God’s Eye has not happened on screen yet.

Was Daemon really called “the Rogue Prince”?

Yes — the maesters named him that for his decades of wars, scandals, and self-made crowns. “Lord Flea Bottom” was the smallfolk’s version, and he liked that one better.

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