The Nireo is a Ringmaker.
After the Defiance he became the holder of the Word of Need and used it to wreak destruction for centuries. He is responsible for the creation of the Pass of Dust during the Battle of Dust.
In 900 ID he was attacked by the Miranora, who was under the control of Saoth’Ul. He was saved by his ring holders Tristan Istei and Konrad, along with Konrad’s companions.