Bastard of Harrenhal
From A Wiki of Ice and Fire
|Alias||The Bastard of Harrenhal|
|Book||The Hedge Knight (mentioned)|
He was defeated by Ser Arlan of Pennytree in the melee at a tourney at King's Landing in 193 AC. His given name has not been published, although "Rivers" is the traditional surname for bastards of noble origin in the riverlands.