Quick answer: Ser Duncan the Tall rose from a Flea Bottom orphan to hedge knight, to Prince Aegon’s sworn shield, to a white cloak, and finally to Lord Commander of the Kingsguard under King Aegon V. The record is thin: he is first named as a Kingsguard knight in 236 AC, was already Lord Commander by 253 AC, and is presumed to have perished beside his king in the tragedy of Summerhall in 259 AC. Here is how that arc actually ran, and what the sources do and do not tell us.
The Road: Flea Bottom to Ashford
Dunk begins with nothing but his height and a borrowed name. An orphan of Flea Bottom, he is squired to the hedge knight Ser Arlan of Pennytree, and when Arlan dies he takes the old man’s sword, horse and example, then spends his life trying to deserve all three. At Ashford Meadow in 209 AC he defends a puppeteer from a prince, wins the Trial of Seven, and loses the heir to the throne in the winning. By the end of that week, Prince Maekar’s youngest son, Egg, the future Aegon V, is his squire, against every rule of sense and station. For the full lineage behind that boy, see who is Egg Targaryen.
The Sworn Shield Years
Through The Sworn Sword and The Mystery Knight, Dunk is no longer just a hedge knight. He is the protector of a Targaryen prince, stumbling through drought feuds and Blackfyre conspiracies with Egg at his side. Our breakdown of The Sworn Sword covers the first of these, including the temptations Dunk walked away from at Coldmoat (see Rohanne Webber), and the Blackfyre Rebellion family tree explains the plot Dunk blundered into in The Mystery Knight. This was the apprenticeship that mattered. Not at arms, since he was never the finest blade alive, but in what the realm actually looks like from the mud. King Aegon V’s famous sympathy for the smallfolk has an obvious source: the man who carried him through their villages for years.
The White Cloak
Egg took the throne in 233 AC. The year Dunk put on the white cloak is not recorded, and the novellas that would have told it were never written, but the histories sketch the outline.
236 AC, the Fourth Blackfyre Rebellion. Ser Duncan is first named as a Kingsguard knight here. The World of Ice & Fire credits him with slaying the pretender Daemon III Blackfyre in the fighting, a hedge knight ending a claimant to the throne.
The late 230s AC, Lyonel Baratheon. When Prince Duncan broke his betrothal to Lyonel Baratheon’s daughter to marry Jenny of Oldstones, Lyonel renounced his fealty and declared himself Storm King. Ser Duncan the Tall, as the king’s champion, defeated him in a trial by combat and ended the rebellion. It is a nicely circular moment: Lyonel had stood beside Dunk at Ashford decades earlier.
253 AC, Lord Commander. By now Dunk commands the Kingsguard. At a winter tourney in King’s Landing, the Lord Commander is beaten by a sixteen-year-old mystery knight who turns out to be Barristan Selmy. That story is why A Song of Ice and Fire readers meet Dunk’s name again in Barristan’s White Book entry, which Jaime Lannister reads in A Storm of Swords.
Dunk’s Life at a Glance
| Year | Event | How firm is the record |
|---|---|---|
| 209 AC | Ashford tourney and the Trial of Seven; Egg becomes his squire | Core canon, The Hedge Knight |
| 211-212 AC | The Sworn Sword and The Mystery Knight | Core canon, novellas |
| 233 AC | Egg crowned as Aegon V | Core canon |
| 236 AC | First named as a Kingsguard knight; slays Daemon III Blackfyre | The World of Ice & Fire |
| Late 230s AC | Defeats Lyonel Baratheon in trial by combat | The World of Ice & Fire; the exact year is ambiguous |
| 253 AC | Serves as Lord Commander; defeated by sixteen-year-old Barristan Selmy | Core canon |
| 259 AC | Presumed to have died at Summerhall with Aegon V and Prince Duncan | “Apparently perished”; not fully confirmed |
Summerhall: The End of the Story
In 259 AC the tragedy of Summerhall killed King Aegon V and his son Prince Duncan the Small, and Rhaegar Targaryen was born in the same night. Ser Duncan the Tall is believed to have died there too, as Lord Commander, and he may have helped some survivors out of the fire. What exactly was attempted at Summerhall, no intact history says. Note the careful wording used by the sources: Dunk is “apparently” lost, not confirmed dead, and his fate is one of the open questions in the franchise. For what the show could do with that gap, see what happens to Dunk and Egg after Season 2.
The Measure of the Man
Westeros had knights with better blood, better swords and better seats. It never had one better proof-tested. A man who started with nothing kept the same vows in the same order through a long life: protect the weak, keep your word, stand by your squire. Kings remembered him. The dynasty he served is remembered by everyone. For Dunk’s family-tree angle, see whether Ser Duncan the Tall was a Targaryen, or follow every branch on the interactive Targaryen family tree.
FAQ
Did Dunk become Lord Commander of the Kingsguard?
Yes. Under King Aegon V, Ser Duncan the Tall rose to command the Kingsguard. He is Lord Commander by 253 AC, when Barristan Selmy defeated him at a winter tourney.
How did Ser Duncan the Tall die?
He is believed to have died in the tragedy of Summerhall in 259 AC, alongside King Aegon V and Prince Duncan the Small. The sources say he “apparently” perished, so his fate is not fully confirmed.
Did Dunk fight the Blackfyres?
Yes. During the Fourth Blackfyre Rebellion in 236 AC, Ser Duncan is credited with slaying the pretender Daemon III Blackfyre, according to The World of Ice & Fire.
Is Dunk mentioned in Game of Thrones or A Song of Ice and Fire?
In the books, Jaime Lannister reads about the past Lord Commanders in the White Book, including Barristan’s account of beating Ser Duncan in a tourney. Dunk is long dead by the main story, but his legend is not.
How old was Dunk when he died?
His birth year is never given exactly. Dunk guessed in 209 AC that he was about sixteen or seventeen, which puts him in his mid-to-late sixties in 259 AC, if he died at Summerhall.