Craster is a wildling who lives north of the Wall. He lives in a fortified homestead, rather grandly called Craster’s Keep, along with his daughters and wives. When his daughters grow old enough he marries them, and then incestuously fathers new children with them. At the time of the War of the Five Kings, he has nineteen wives. He is counted as an ally of the Night’s Watch and allows his keep to be used as a redoubt by the Watch on their rangings northwards. However, he is also regarded as an unsavory character and his relationship with his daughters is regarded as sordid. The Night’s Watch grudgingly has to tolerate this, as he is one of their few sources of information and shelter beyond the Wall.