Lyn is a young, friendly sword-wielding lord and one of the Lorca tribe of Sacae, the sole survivor of a massacre of the tribe by the bandits of Taliver. She is the daughter of Hassar, the Lorca chieftain, and Madelyn, the daughter of Lord Hausen of Caelin, and she was named for her late grandmother, Hausen's wife; both of her parents perished in the Taliver assault. Some months after the demise of her tribe, she was embroiled in an inheritance dispute spearheaded by her granduncle Lundgren after learning of her Caelin heritage, and a year afterward joined Eliwood and Hector in their investigations into the Black Fang and the activities of Nergal.
In Super Smash Flash 2
Lyn appears as an Assist Trophy in Super Smash Flash 2. Upon being summoned, she leans on one knee and says "By my sword...", and then she pauses for a moment. She then teleports behind an opponent, which is often the opponent closest to her, and says "Take this!" as she slashes with her sword before finally disappearing. Her attack is powerful and very accurate, dealing 32% damage and strong knockback to opponents hit and being able to hit one who is moving, airborne, or grabbing a ledge. However, her attack can be avoided with a well-timed air dodge, sidestep, or roll.