Sothe Fire Emblem: Path of Radiance Images

Sothe (サザ Saza) is a playable character in Fire Emblem: Path of Radiance and also a major character in Fire Emblem: Radiant Dawn.

Sothe shares a protective close and brother-sister type friendship with Micaiah. Due to his childhood life with Micaiah he has an unshakeable faith in her even to the point he can be a bit of "Micaiah's boss", though that could be due to her leading the army or due to their childhood friendship because she looked after him when he was little. He gets into a rivalry with the Black Knight because the Black Knight has come to protect Micaiah much to the annoyance of Sothe. Also (much to the annoyance of Micaiah), he gained a slightly more-than-healthy admiration for Commander Ike from serving under him in the Mad King's War, at one point aggravating Micaiah to such a point that she refers to Ike as the "father of Sothe's children." Sothe's overall personality is very calm. According to an info conversation with Micaiah, it seems that Sothe doesn't smile much.

Source: Fire Emblem wiki