- This is about a type of tournament contestant. For the novella, see The Mystery Knight.
A mystery knight is a contestant at a tournament that competes without revealing his identity. The contestant may or may not reveal his identity later. Mystery knights choose to conceal their names for a variety of reasons.
When Meera Reed tells Bran Stark of the Knight of the Laughing Tree, who competed in the Tourney at Harrenhal, Bran recalls from his education: "Mystery knights would oft appear at tourneys, with helms concealing their faces, and shields that were either blank or bore some strange device."
Besides the Knight of the Laughing Tree, other mystery knights include:
- Prince Aemon Targaryen, who competed as a mystery knight so he could name his sister Naerys the tournament's Queen of Love and Beauty.
- Ser Barristan Selmy, who competed as a mystery knight at the age of 10 in a tournament at Blackhaven, and was knighted for again doing so at the age of 16 in the winter tournament at King's Landing.
- The outlaw Simon Toyne, who competed at a tournament at Storm's End.
- The Bastard of Uplands, who competed at a tournament at Oldtown as "Blackshield" and was defeated and exposed by Selmy.
- Ser Duncan the Tall, who competes as "the Gallows Knight" at a joust to celebrate the wedding of Lord Ambrose Butterwell.