Here is a character bio for my Rogue, Phineralthus Flickwort. I don't know much about the geography of FR, having spent most of my time in homebrews, but feel free to play off it. Character Sheet coming soon...
The son of self-proclaimed nobles, 'Phin' (he really dislikes Phineralthus) was forcibly removed from the family manor at age 18, when his father caught him pinching gold from the family vault and distributing it to un-wed mothers (Some locals speculated it was palimony).
The father, terrified that his boy might one day besmirch the family name, immediately dismissed him from the household. And much to the father's surprise, Phin turned and walked out of the house without so much as a flinch, muttering something about "a phony and barmy, old codger."
Phin later fell in with a group of rogues in town who were more well known for their drinking and wenching than burglary and guile. After a while however, Phin took over leadership of the gang (known as the Farnsworth Fangs), in hopes of embarressing his father (whom, as a half-witted, false noble, was none to popular anyhow).
After a few successful raids (mostly on his fathers household) Phin's face and heritage became too well known by the local authorityes and he gladly skipped town, hoping escape his father's bumbling, narcissistic reputation. Phin's clipped accent and insufferable avarice, make him instantly recognizable to anyone from his hometown, where his story has become somewhat of an urban legend.