Grieg

Grieg was born in Daein, and lived most of his life there, working on spells that would make him both a leader and enemy of his people. A former soldier of Daein, he was soon promoted to General during Skyler's reign, and served as the fourth Rider of Daein, alongside Elliot, Balthier, and Rowan. However, he agreed with The Originals sentiments, and soon joined, secretly while serving Skyler. As soon as Skyler gave his aid to Brio, he left, giving valuable information to The Originals, which would aid in the invasion of Daein.

War of Heroes
As soon as Skyler left for Brio, alongside Kiro and Keith, he too left. He left for the Brio Encampment, where the Originals had gathered their forces for the Brio invasion. Grieg, having been a spy for the Originals, told them that most of the defenses were down, and that it would be the perfect time to strike. He led the forces back into Daein, and fought, quickly destroying the remaining Daein forces, and defeating Rowan at the capital. Taking Rowan hostage, they fled Daein, returning back to Brio, where he joined the fight in a nearby Brio town. This would be his downfall, however. He would soon meet again with Rowan, and the two fought. The fight quickly turned against Grieg, and he was killed.