Lyrion Bolton, called Lyrion the Lousy, was the uncle of Lord Roose Bolton, who went missing sometime during Robert's Rebellion.
Lyrion was the uncle of Roose Bolton, and a notable member of House Bolton. He had one daughter, a bastard named Melna Snow.
He was also accused of Killing Lord Temmon Berrow, causing a falling out between him and his brother.
He fought for Roose during Robert Baratheon's rebellion. At the battle of the Trident, he disappeared from the battle. A year later, no trace of him was found. Roose Bolton accused him of fleeing the battle and leaving Westeros. He was given the name Lyrion the Lousy.