From A Wiki of Ice and Fire
|Book||A Storm of Swords (mentioned)|
Green Gergen is a man-at arms. He was part of the Iron Throne host assembled at Eddard Stark's command and sent to stop Ser Gregor Clegane's attacks against the Riverlands.
A Storm of Swords
Lord Edric Dayne remembers that Green Gergen helped him get Lord Beric Dondarrion on his horse after they had been ambushed in the battle at the Mummer's Ford.
- ↑ A Storm of Swords, Chapter 43, Arya VIII.