Lothar

Lothar had once been a great swordsman, until he fell under the power of the Lich Khelereth and was turned into an undead, bound to the sword Gringolet.

The Avatar found him at the elevator in Ultima IX. Lothar was real unhappy with his existence and told the Avatar a lot about Khelereth and his new favourite. The Avatar then had to defeat him with the Gringolet in order to descend deeper into Covetous. Later, Lothar was freed from his bonds to the Lich who had forged him into the sword, when the Avatar sacrificed it in order to access the Lich's domain.