A blink-and-you-miss-it scene in 'A Knight of the Seven Kingdoms' ties Dunk to his most famous descendant, Brienne of Tarth

Gwendoline Christie as Brienne in "Game of Thrones" and Peter Claffey as Dunk in "A Knight of the Seven Kingdoms."

Helen Sloan/Steffan Hill/HBO

• "A Knight of the Seven Kingdoms" follows a hedge knight named Dunk, aka Ser Duncan the Tall.
• Showrunner Ira Parker said he included an Easter egg in episode five that hints at Dunk's legacy.
• George R. R. Martin previously confirmed that Brienne from "Game of Thrones" is Dunk's descendant.

Spoilers ahead for "A Knight of the Seven Kingdoms" season one...