Sheeda

Caeda (Shiida in the European version of Shadow Dragon and the Latin American version of Heroes, Sheda in the English version of the anime, and Shida in the Italian version of the anime) is a playable character from the Archanea Series of Fire Emblem. She is the pure-hearted princess of Talys, daughter of King Mostyn, and a childhood friend and later wife of Marth. She also appears as a SpotPass character in Fire Emblem Awakening.

According to the Takayashiki Hideo novel adaptation of Mystery of the Emblem, Caeda is 14 years old in Shadow Dragon and the Blade of Light and 17 in Book 2 of Mystery of the Emblem.

(Source: Fire Emblem Wikia)