In a probably very ancient poem embedded in the sixteenth-century Welsh romance called _Taliesin_, included by Lady Guest in her _Mabinogion_. Footnote 369: “The existence of a sixth-century bard of this name, a contemporary of the heroic stage of British resistance to the Germanic invaders, is well attested. A number of poems are found in mediæval Welsh MSS., chief among them the so-called _Book of Taliesin_, ascribed to this sixth-century poet. Some of these are almost as old as any remains of Welsh poetry, and may go back to the early tenth or the ninth century; others are productions of the eleventh, twelfth, and even thirteenth centuries.”—Nutt: Notes to his (1902) edition of Lady Guest’s _Mabinogion_. Footnote 370: Rhys: _Hibbert Lectures_, p. 551. Footnote 371: “There can be little doubt but that the sixth-century bard succeeded to the form and attributes of a far older, a prehistoric, a mythic singer.”—Nutt: Notes to _Mabinogion_. Footnote 372: I have been obliged to collate four different translators to obtain an acceptable version of what Mr. T. Stephens, in his _Literature of the Kymri_, calls “one of the least intelligible of the mythological poems”. My authorities have been Skene, Stephens, Nash, and Rhys. Footnote 373: A form of the name Gwydion. Footnote 374: The name of Arthur’s ship. Footnote 375: Revolving Castle. Footnote 376: Four-cornered Castle. Footnote 377: The Cold Place. Footnote 378: Castle of Revelry. Footnote 379: Kingly Castle. Footnote 380: Glass Castle. Footnote 381: Castle of Riches. Footnote 382: Meaning is unknown. See chap. XVI—“The Gods of the Britons”. Footnote 383: Meaning is unknown. See chap. XX—“The Victories of Light over Darkness”. Footnote 384: Unless they should be “the yellow and the brindled bull” mentioned in the story of _Kulhwch and Olwen_. Footnote 385: _Book of Taliesin_, poem XIV. The translation is by Rhys: _Arthurian Legend_, p. 301. Footnote 386: Rhys: _Arthurian Legend_, p. 325. Footnote 387: Rhys: _ibid._, chap. I. Footnote 388: Malory’s _Morte Darthur_, Book II, chap. II. Footnote 389: _Historia Britonum_, Book VIII, chap. XX. Footnote 390: Rhys: _Arthurian Legend_, p. 169. Footnote 391: Rhys: _ibid._, p. 169. Footnote 392: Rhys: _Arthurian Legend_, p. 13. Footnote 393: Rhys: _ibid._, pp. 19-23. Footnote 394: Rhys: _Hibbert Lectures_, p. 168. Footnote 395: Rhys: _Hibbert Lectures_, p. 167. Footnote 396: See Rhys’s exposition of the mythological meaning of the _Red Book_ romance of the _Dream of Maxen Wledig_, in his _Hibbert Lectures_, pp. 160-175. Footnote 397: Rhys: _Hibbert Lectures_, pp. 192-195. Footnote 398: _Historia Britonum_, Book VIII, chaps. IX-XII. Footnote 399: See chap. IV and Rhys: _Hibbert Lectures_, p. 194. Footnote 400: Rhys: _Hibbert Lectures_, pp. 158, 159. Footnote 401: _Ibid._, p. 155.