|Allegiance || House Clegane|
|Book(s) || A Clash of Kings (mentioned)|
Eggon is an armsman in service to Ser Gregor Clegane.
A Clash of Kings
In Chiswyck's telling of his story of the gang rape of a girl named Layna by Ser Gregor and his men at an alehouse, it was Eggon who started it all by attacking the girl first.