Jill Lepore, The Name of War: King Philip's War and the Origins of American Identity (Novi Eboraci: Alfred A. Knopf, 1998). King Philip "was also known as Metacom, or Pometacom. King Philip may well have been a name that he adopted, as it was common for Natives to take other names. King Philip had on several occasions signed as such and has been referred to by other natives by that name."
