Matter of Britain
The name distinguishes and relates the Matter of Britain from the mythological themes taken from classical antiquity, the "Matter of Rome", and the tales of the Paladins of Charlemagne and their wars with the Moors and Saracens, which constituted the "Matter of France". King Arthur is the chief subject of the Matter of Britain, along with stories related to the legendary kings of Britain, as well as lesser-known topics related to the history of Great Britain and Brittany, such as the stories of Brutus of Troy, Coel Hen, Leir of Britain (King Lear), and Gogmagog.