Thanks Wakshaani!
Where is the first part of his background covered? As I said, I'm happy to go pick up PDFs of old books, and sometimes there is no better way to get a feel for someone than to read the early material about them.
(I'm interested because he sounds like a someone that would both utterly fascinate and utterly revolt one particular character in my game, so I'd like to have him influence some events and eventually cross paths, but I want to get a good feel for him first).