Lowen is a minor character in Fire Emblem. He appears as a starting character in Eliwood's Mode, and one chapter in to Hector's Mode. Lowen appears again as a DLC and SpotPass character in Fire Emblem: Awakening, but has no major storyline appearences in any other game.
Lowen is a young Phaeren knight, learning from the more experienced Marcus. Lowen lacks confidence, due to his youth and lack of experience, but has more potential than he realizes. In the end, he becomes a full Phaeren knight for his actions in the fight with Nergal, but he makes no appearences in Fire Emblem: Fuuin no Tsurugi.