With regard to the attitude taken up by certain critics, that no evidential value can be attached to these references, I would point out that when Medieval writers quote an authority for their statements they, as a rule, refer to a writer whose name carries weight, and will impress their readers; they are offering a guarantee for the authenticity of their statements. The special attribution may be purely fictitious but the individual referred to enjoys an established reputation. Thus, the later cyclic redactions of the Arthurian romances are largely attributed to Walter Map, who, in view of his public position, and political activities, could certainly never have had the leisure to compose one half of the literature with which he is credited! In the same way Robert de Borron, Chrétien de Troyes, Wolfram von Eschenbach, are all referred to as sources without any justification in fact. Nor is it probable that Wauchier, who wrote on the continent, and who, if he be really Wauchier de Denain, was under the patronage of the Count of Flanders, would have gone out of his way to invent a Welsh source. Judging from analogy, the actual existence of a personage named Bleheris, who enjoyed a remarkable reputation as a story-teller, is, _prima facie_, extremely probable.[9] But are these references independent, was there more than one Bleheris? I think not. The name is a proper, and not a family, name. In the latter case it might be possible to argue that we were dealing with separate members of a family, or group, of bardic poets, whose office it was to preserve, and relate, the national legends. But we are dealing with variants of a proper name, and that of distinctly insular, and Welsh origin.[10] The original form, Bledri, was by no means uncommon in Wales: from that point of view there might well have been four or five, or even more, of that name, but that each and all of these should have possessed the same qualifications, should have been equally well versed in popular traditions, equally dowered with the gift of story-telling, on equally friendly terms with the Norman invaders, and equally possessed of such a knowledge of the French language as should permit them to tell their stories in that tongue, is, I submit, highly improbable. This latter point, _i.e._, the knowledge of French, seems to me to be of crucial importance. Given the relations between conqueror and conquered, and the _intransigeant_ character of Welsh patriotism, the men who were on sufficiently friendly terms with the invaders to be willing to relate the national legends, with an assurance of finding a sympathetic hearing, must have been few and far between. I do not think the importance of this point has been sufficiently grasped by critics.