In What period did King Arthur live?

Phillips and Keatman argue for their variant of the nom de guerre theory in their book, King Arthur: The True Story. For them, the name has two components. The first would be the Welsh art meaning bear, and the second a repetition in Latin, ursus, making the original name "Artursus". According to their theory this name was a title rather than the name of a person. In any case, the name Artur and its variants was used by at least four leaders who lived after the traditional dates of Arthur’s battles, suggesting to Griffen and others that it was not used as a personal name until “the” Arthur himself did so. This idea is reinforced by the fact that Arthur's father is named Uther, phonetically similar to Arthur.