"Both Horn and Havelok the Dane belong to a group of poems known as the Matter of England, late medieval romances based in part on the oral folk culture that survived the Norman Conquest. This Category also usually includes Athelston and Bevis of Hampton." Introduction to King Horn ed. B. Herzman, Graham Drake and Eve Salisbury; originally published in Four Romances of England (Kalamazoo, MI, 1999, p. 1.