I think the Knight type character is in Aquilonia, and is a cultural choice for...erm...Bossonians? Corinthians? Can't remember...
The books are very good, if for nothing but the feats and combat manuvers. Fallen isn't as good a source, maybe, as Pirate Isles, but Finest has some great stuff for Nobles and the other "fancy pants" classes.
I rate them highly, but look through them first yourself to see if they suit your style of gaming. They aren't cheap...