Robb Stark is the King in the North, the ruler of the North. Following the death of his father, Lord Eddard Stark, at the order of Joffrey Baratheon, the King on the Iron Throne, Robb became the head of House Stark and the Lord of Winterfell. He was declared King by the forces of House Stark and its bannermen and allies after Eddard's execution. He is leading these forces in a rebellion against Joffrey, designed to break the North away from the control of the Iron Throne.  Robb is a smart, just ruler like his father Ned Stark and has already won multiple battles in his march south