Aesperus

Aesperus was a lich wizard dwelling in the city of Hulburg near the Moonsea.

History
Some time in the 9th century DR, Aesperus was a wizard fighting in defense of Hulburg. During a battle, he was knocked unconscious and buried alive beneath a pile of corpses. He was eventually interred in The Vault of the Dead beneath the city, as part of a mass burial. But Aesperus had survived, after a fashion: he had become a lich and was driven insane.

Aesperus dwelled in a subterranean chamber in the Vault for some five centuries. By 1367 DR, he plotted his vengeance against the surface world, aiming to animate the thousands of corpses in the Vault and send the undead horde to march across the northern coast of the Moonsea and slaughter and destroy everything in their path.