Erryk Cargyll

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House Cargyll.svg Ser
Erryk Cargyll
Erryk Arryk Cargyll.png
Ser Erryk and Ser Arryk Cargyll

Alias one of "the celebrated Cargyll twins"[1]
Title Ser
Culture Crownlands
Born or before 89 AC[2]
Died 129 AC
Dragonstone, the crownlands[3]

Played by Elliott Tittensor
TV series House of the Dragon: Season 1

Erryk Cargyll was a knight from House Cargyll. He and his twin brother, Ser Arryk Cargyll, were members of the Kingsguard during the reign of King Viserys I Targaryen.[1] During the Dance of the Dragons, Erryk sided with Queen Rhaenyra Targaryen, while his brother Arryk sided with King Aegon II Targaryen.[4]

In the television adaptation House of the Dragon, Erryk is portrayed by Elliott Tittensor.[5]


Erryk and his twin brother, Ser Arryk, were physically identical, to the point that even their fellow Kingsguards could not differentiate them.[6]


Ser Erryk and Ser Arryk Cargyll, knights of the Kingsguard, were both unhorsed by Ser Criston Cole at the tourney for King Viserys I's accession at Maidenpool in 105 AC.[1]

In 120 AC, King Viserys I Targaryen made Erryk the sworn shield of Princess Rhaenyra Targaryen, replacing Ser Harwin Strong.[1]

The Dance of the Dragons

After the death of Viserys in 129 AC, Erryk followed the other Kingsguard knights Ser Steffon Darklyn and Ser Lorent Marbrand in siding with the blacks, joining the Queensguard of Rhaenyra on Dragonstone. Erryk was also a member of Rhaenyra's "black council". However, his twin Arryk supported Rhaenyra's rival, King Aegon II Targaryen, and his green faction in King's Landing.[4]

Arryk was in the retinue of Grand Maester Orwyle when he traveled from King's Landing to Dragonstone in an unsuccessful attempt to reconcile the rival Targaryens. A song, composed long after the fact, claims that before Arryk left Dragonstone, the brothers tried to convince each other to change sides. According to the song, when this attempt failed, they exchanged declarations of love and parted, knowing that when they would meet next, it would be as enemies. It is possible that such a farewell did indeed take place that day, but no historical records mention it.[4]

After the murder of Aegon's son Prince Jaehaerys Targaryen by Blood and Cheese,[7] Aegon wanted revenge on Rhaenyra. Ser Criston, the Lord Commander of Aegon's Kingsguard, ordered Arryk to infiltrate Dragonstone in the guise of his twin, Erryk. It is disputed whether his mission was to kill Rhaenyra or her children. Arryk arrived on the island disguised as a fisherman, changed to his Kingsguard armor and white cloak, and easily entered the castle. However, as Arryk was making his way to the royal apartments, he coincidentally encountered Erryk, who immediately understood why his twin was there.[6]

Accounts of the fight that followed greatly differ. Septon Eustace's account simply states that the Cargyll twins slew each other.[6] According to singers, the brothers professed their love for each other as they drew their swords.[3][6] Per Grand Maester Munkun's The Dance of the Dragons, A True Telling, Erryk and Arryk battled for most of an hour. The noise of the fight woke half of Rhaenyra's court, but they could only watch, as none could tell which twin was which. In the end, Arryk and Erryk mortally wounded each other, and died in each other's arms, weeping.[8][3][6] And finally, per The Testimony of Mushroom, the fight lasted only moments, and the brothers did not declare their love, but rather called each other traitor. Erryk struck the first mortal blow, nearly cutting off Arryk's arm at the shoulder. As Arryk collapsed, he grabbed Erryk's cloak and pulled him close to stab him in the belly with a dagger. Arryk was dead before anyone found them, but Erryk took four days to die from his gut wound, screaming in pain and cursing his brother the whole time.[3][6]


Singers and storytellers have generally preferred Munkun's account of Erryk and Arryk's last battle.[6]

Many songs have been written about the Cargyll twins, including "Farewell, My Brother", a sad ballad by Luceon of Tarth, which is still sung today.[4]

Recent Events

A Game of Thrones

Bran Stark recalls the stories of several legendary members of the Kingsguard, including the twins Ser Erryk and Ser Arryk, and how they killed each other during the Dance of the Dragons.[9]

A Clash of Kings

When King Joffrey Baratheon chides his brother Prince Tommen for crying, Sansa Stark says that the twins Ser Arryk and Ser Erryk died with tears on their cheeks after each had mortally wounded the other.[8]

A Storm of Swords

Sansa Stark encounters Lady Olenna Tyrell's personal guard, twins named Erryk and Arryk, who are evidently named after the legendary Kingsguards.[10]

A Feast for Crows

Queen Cersei Lannister thinks that if Ser Loras Tyrell returns from the siege of Dragonstone, she will send him to deal with Bronn at Stokeworth. She hopes that each of them will kill the other, like Ser Arryk and Ser Erryk.[11]


Erryk: I love you, brother.
Arryk: And I you, brother.[6]

—Erryk and Arryk Cargyll, drawing their swords

Behind the Scenes

Erryk and Arryk Cargyll are inspired by brothers from Arthurian legend, Balin and Balan.[12]


  1. 1.0 1.1 1.2 1.3 Fire & Blood, Heirs of the Dragon - A Question of Succession.
  2. See the Erryk Cargyll calculation
  3. 3.0 3.1 3.2 3.3 The World of Ice & Fire, The Targaryen Kings: Aegon II.
  4. 4.0 4.1 4.2 4.3 Fire & Blood, The Dying of the Dragons - The Blacks and the Greens.
  5. WarnerMedia Pressroom: House of the Dragon | Character Descriptions
  6. 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 Fire & Blood, The Dying of the Dragons - The Red Dragon and the Gold.
  7. Fire & Blood, The Dying of the Dragons - A Son for a Son.
  8. 8.0 8.1 A Clash of Kings, Chapter 41, Tyrion IX.
  9. A Game of Thrones, Chapter 8, Bran II.
  10. A Storm of Swords, Chapter 6, Sansa I.
  11. A Feast for Crows, Chapter 32, Cersei VII.
  12. So Spake Martin: Ser Erryk and Ser Arryk (January 28, 1999)
Preceded by Sworn shield of Rhaenyra Targaryen
120129 AC