From A Wiki of Ice and Fire
|Personal arms||Parchment upon a brown escutcheon on beige|
|Book||The Hedge Knight (mentioned)|
Ser Benjamin Avery was a knight during the reign of King Daeron II Targaryen.
Benjamin participated in the tourney at Ashford Meadow in 209 AC.
Behind the scenes
The character is named after Benjamin Avery, who adapted George R. R. Martin's Dunk and Egg as a graphic novel series.