Lillia

Lillia is the second Princess of Serenes and was the one who gave Lehran's Medallion to the mother of Ike. She was killed by Ashnard, who wanted to free Yune from the Medallion but didn't have the power to do so. Also, she resided in a small room in the cellars of Palmeni Temple, as revealed in Path of Radiance when one beats Chapter 22.