Tiana

Tiana is a character mentioned in Fire Emblem: Three Houses. She is the wife of the King of Almyra, the daughter of Duke Oswald of the Leicester Alliance, the sister of Godfrey, and the mother of Claude.

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Tiana was born in Derdriu in the Leicester Alliance to Duke Oswald von Riegan, the head of House Riegan and leader of the Alliance. Sometime after her brother Godfrey was designated Oswald's heir, Tiana disappeared. Unbeknownst to her family, she ended up in the neighboring kingdom of Almyra and married its king. She gave birth to her son Claude in Imperial Year 1162.

Years later, Godfrey died in an apparent accident, leaving Oswald without an heir and the Alliance in a precarious political situation, as Oswald was gravely ill himself and his death would leave a power vacuum. After a frantic search, Oswald located his missing daughter in Almyra and fortunately learned that he had a grandson. In Imperial Year 1179, Oswald formally presented Claude as his new heir. Tiana remained behind in Almyra.