I played a lot of WoW when I was younger. Started with a paladin (human) that had my real name (!). I got to level 80 and started a new death knight character - and that’s when I came up with the name Magoroth. It sounded medieval-ish.

Ganelon is from the Chronicles of Amber - an amazing book by Roger Zelazny about a rather dysfunctional family in control of the Kingdom of Amber, and possessing awesome magical powers. Ganelon is the former frenemy of the main character (from ages past).