The sister cities of Samyriana, Bayasabhad, and Kayakayanaya are ruled by the Great Fathers. Their daughters are raised from an early age to be warriors, as it is believed that only those who give birth are permitted to take life at will. The warrior maids wear iron rings in their nipples and rubies in their cheeks. They ride horses and are trained with bow, knife, sling, and spear.
Meanwhile, the sons of the Great Fathers are gelded when they reach the age of manhood. The eunuchs serve as cooks, craftsmen, farmers, priests, scholars, scribes, and servants. The most promising males, one out of a hundred, are permitted to mature, breed, and become Great Fathers in their turn. Maester Naylin speculates on the customs in Rubies and Iron.