Erundil

 is a male sorcerer found in Morrowind. He is holding the Ring of Sanguine Unseen Wisdom, a extravagant ring blessed by Sanguine that's is wanted by the Morag Tong

Quest name

 * Threads of the Webspinner: The Morag Tong will send the player to get the ring from Erundil, who will not willingly give it up.