Lysithea Von Ordelia

Lysithea is a playable character in Fire Emblem: Three Houses. She is a student at the Officers Academy who is from the Leicester Alliance and is a member of the Golden Deer. She possesses both a Minor Crest of Charon and a Major Crest of Gloucester.

Lysithea is the eldest daughter and heir to House Ordelia. When she was two years old, her family suffered retribution from the Adrestian Empire for their role in House Hrym's revolt. She is a magical prodigy whose talents developed at an early age.

(Source: Fire Emblem Wiki)