Dul-dauna, the, [237].

Dun Cow, Book of the. See Cow.

Dundalk, [177].

Dundealgan, [177], [181], [188], [189].

Dún Scaith, [175]-176.

Dux Britanniarum. See Duke of the Britains.

Dwynwen, Saint, [388].

Dyfan, Saint, [386].

Dyfed, or Demetia, a province of South Wales, [273], [278], [279], [281], [282], [286], [298]-301, [303], [304], [309], [310], [394].

Dylan, a British god, [261], [262], [322], [335], [360], [364], [371].