Nac! I'm doing Tal's background, which necessarily intersects yours. Take a peek and let me know if anything I'm writing conflicts with your ideas. In particular I want your input on the event that breaks the happy little peasant family up.
I'm thinking that perhaps if daddy died then mom might lose the farm, and the kids are fostered out to different people...they then reunite later on, after Caerwyn's started banditing, which might explain why he 'went straight.'
Just throwing out ideas though. I'd like to hear your thoughts!