Egg grows up to become King Aegon V Targaryen, also known as “Aegon the Unlikely,” a Targaryen king of Westeros who eventually sits on the Iron Throne.

Who “Egg” Really Is

In the Game of Thrones / A Song of Ice and Fire universe, “Egg” is the childhood nickname of Prince Aegon Targaryen, a younger son of the Targaryen royal family who initially travels the realm as the bald-headed squire of Ser Duncan the Tall in the Dunk & Egg stories and in the show A Knight of the Seven Kingdoms.

Because he is the fourth son of a fourth son, almost no one expects him to inherit the throne, which is why history later remembers him as Aegon “the Unlikely.”

What He Becomes in the Timeline of Game of Thrones

As he grows older, Egg eventually does become king of the Seven Kingdoms, ruling as King Aegon V Targaryen.

His reign is remembered for attempts at reforms, his unusual rise to power from obscure beginnings as a wandering squire, and his tragic end. Key points:

  • Egg is actually Prince Aegon Targaryen in disguise.
  • He is later crowned King of the Seven Kingdoms as Aegon V.
  • In the broader Game of Thrones backstory, he is an ancestor of later Targaryens, linking A Knight of the Seven Kingdoms directly to the events that eventually lead to the main series.

His Fate (Mild Book/Lore Spoilers)

Historical lore describes that Aegon V dies in the mysterious Summerhall fire, likely during a failed attempt to hatch dragon eggs, bringing a tragic end to both his experiments and his reign.

That same disaster is said to claim the lives of Ser Duncan the Tall and several members of the Targaryen family, cementing Egg’s story as one of the most bittersweet in the franchise’s lore.

TL;DR: Egg grows up to be King Aegon V Targaryen, “Aegon the Unlikely,” a Targaryen king whose humble days as a wandering squire eventually lead him to the Iron Throne and a tragic death at Summerhall.

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