Yrelek Misrahan_The Chained Prince

Yrelek-Misrahan is the god of slavery, dominion, and the undead. Once a human prince, his belief in his noble superiority led to him to enslave the people of his nation, and in his effort to have them serve even after death, he became the first necromancer, chaining his slaves beyond their graves. Though he was eventually slain, his foray into necromancy allowed him to ascend to godhood after his death, carving himself a place in the Underplane with the help of his undead hordes. Believing that the weak must always serve the noble and strong, he continues to expand his armies, and his profane power seeps through the veil in the form of undead creatures that plague the far corners of Gorega."

~N.P. Barret