Lex(JP) is a character from Fire Emblem: Genealogy of the Holy War. He is the youngest son of Lombard, the duke of Dozel, and the half-brother of Danann. He possesses minor Neir blood and is widely regarded to be a rebel to his family's name. He is a childhood friend of both Azelle and Tailtiu. When Azelle joins Sigurd's army to help rescue Edain, Lex also joins, but with his only reason for doing so is that he wants to help his friend.

He first appears in the Prologue alongside Azelle in the northern area. He is hot-headed and loves to fight. In Chapter 1, he can wait on an edge of a peninsula to receive a Brave Axe from a mysterious woman of unknown origins.

Lex will eventually perish in the Battle of Belhalla, alongside a good number of his fellow comrades.

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