So, here's what I know about Gabranth. His home kingdom of Landis (I think) is taken over by an empire (the Archadian empire?), which motivates him to become a rebel. As a rebel, he impersonates Basch during that whole deal with Dalmasca, and kills Raminas because he thinks it's a traitorous move for Dalmasca to join up with the empire. If that's the case, why does he later become a Judge?
I realize that there could be many wrong things with what I wrote above. Mostly I just want to understand what was up with Gabranth's (Noah's) character. What motivated him to become a Judge, why did he kill Raminas, why does he protect Larsa, and what estranged him from his brother?