Egg is Aegon V Targaryen, the future King of Westeros, nicknamed “Egg” when he was a boy.

Who “Egg” Actually Is

  • “Egg” is the childhood nickname of Prince Aegon Targaryen, who later becomes King Aegon V Targaryen, also called “Aegon the Unlikely.”
  • In the Dunk and Egg stories (and the upcoming A Knight of the Seven Kingdoms show), he travels incognito as a bald young squire called Egg alongside Ser Duncan the Tall.

Why He’s Called “Egg”

  • The nickname “Egg” comes from his family and is a playful shortening of “Aegon,” fitting his role as the youngest, underestimated prince.
  • In the stories, keeping the name “Egg” lets him hide his royal identity and see the realm from the smallfolk’s perspective instead of as a pampered Targaryen prince.

Which Aegon Among All The Aegons

There are several Aegons in Targaryen history, but the one known as Egg is specifically:

  • Aegon V Targaryen (not Aegon I the Conqueror, not Aegon II, not Aegon IV, etc.).
  • He is the star of the Dunk and Egg tales and later rules as a relatively humble, reform‑minded king remembered for rising to the throne unexpectedly, hence “the Unlikely.”

Information gathered from public forums or data available on the internet and portrayed here.