|Book(s)||A Storm of Swords (mentioned)|
Ser Robert Stone is the name of the knight that Ser Osmund Kettleblack claimed knighted him on the battlefield. Ser Osmund claims he is dead. According to the naming conventions for bastards, Robert must have been a bastard from the Vale. He is not known to Ser Jaime Lannister, who believes Stone was made up by Osmund.