Morphius

Lord Umbria is a liche, who in life had been Praecor Loth's assassin and spy. He and the other members of Loth's Company of Three appear in Ultima Underworld II.

Description
Praecor Loth had met Morphius when he was a common cutpurse of Rhiannon's streets, and took it upon himself to shape the youth's skills to his own ends, making him a champion of his court. Eternally grateful for the king's intervention, Morphius worked alongside Lord Umbria and Lethe to "protect" Loth even after his death, and for seven centuries he stood as a liche, guarding his master's tomb from the Guardian's agents.

Should the Avatar have approached Morphius in their quest to reach Praecor Loth, the undying thief would bid them turn back, refusing to believe the hero was anything other than another grave robber sent by the Red Titan. Should the Avatar insist on passing through Morphius' chambers, the undead thief would attempt to slay them as he had so many before, and would ultimately have to be destroyed before the hero could reach the king's resting place.

Trivia

 * Morphius is quite probably a corruption of Morpheus, the Greco-Roman God of dreams.