House Bolton is led by Roose Bolton, a corruptible sort to say the least. He newly is married to a daughter of Walder Frey. He is highly an excellent tactician. He proved his worth in battle again recently by escaping from the grasps of Lord Tywin Lannister, while leading a diversionary attack at the Battle of the Green Fork. Lord Bolton was respected, but never trusted by the newly headless former Warden of the North, Lord Eddard Stark.