Hatfield's Foe is a reference to the Hatfield-McCoy feud, which was a long-running dispute between two families in the Appalachian Mountains of West Virginia and Kentucky in the late 19th century. The McCoy family was represented by Randolph 'Randall' McCoy, and the Hatfield family was represented by William Anderson 'Devil Anse' Hatfield. The feud was characterized by violence and bloodshed, and it became a symbol of the deep divisions between the two families. The term 'Hatfield's Foe' refers to the McCoy family, and specifically to Randall McCoy.