Yet so it is. I doubt if any scholar of standing would now argue that Lancelot and his relation to the queen formed an integral portion of the early tradition; if any, conversant with the literature of the cycle, would reckon Lancelot among the original band of heroes who gathered round the British king. In the introduction to my studies on the Gawain legend, I remarked that, if we desired to arrive at an elucidation of the Arthurian problem as a whole, we must first begin with the elucidation of its component parts--we must severally disentangle the legends connected with the leading knights of the cycle before we can hope to understand the growth and development of that cycle. When we have arrived at some clear idea concerning the stories originally told of the Arthurian heroes, and their relation to each other and to the king, we shall then be in a better position to judge of the nature of the original legend--whether it be mainly the product of literary invention, or in its more important features, the work of mythical tradition. It is not a matter of slight importance to ascertain to which of these two categories the leading heroes of Arthurian romance belong. In the case of Sir Gawain we were able to detect certain features which, by their persistent recurrence in the great mass of tradition connected with this knight, seemed to indicate a general recognition on the part of the romance writers that they belonged to an early form of his story, and as such were to be preserved even when but incompletely understood. Further I pointed out the parallels existing between certain of his most famous adventures and those recorded in early Irish tradition, parallels which went far to prove, not merely the antiquity of the feats ascribed to him, but their source in Celtic myth. In the following studies I shall endeavour, in the same way, to trace to its origin the legend of Lancelot du Lac, to discover what was the tale originally connected with him, and, if possible, follow the steps which led to the immense development of his popularity. I do not for a moment suggest, any more than in the case of Gawain, the finality of the results arrived at; but I hope at least to present the reader with a sorely needed summary of the Lancelot legend, and to clear the ground for further researches into his story.