Welsh Journals

both the name of the place and that of its resident correspond exactly with the modern appellation of Moylgrove or Trewyddel. However, if in spite of everything which indicates the contrary, the name Trewyddel means" the town- ship of the Irishman," then it may very well refer to Diwrnach Wyddel, to whom the cauldron belonged, and may stand for an older "Tref Diwrnach Wyddel." Now, Llwydeu mab kel coet, whose house is said to have been at Porth Kerdin, is a very important per- sonage in this mythology, and is referred to in the passage quoted above, as so well known that no explanation of him is offered. Under the name of Llwyt mab kil coet, he is represented in the Mabinogi of Manawvddan as a great magician, who could change his shape and that of others. The majesty and terror of supernatural power surround him at every step. But what I want to do now is to show that when the Dimetians began to rationalise their religion, and to localise the fantastic habitations of their demi-gods, the land of Cemmes, in which Moylgrove stands, is the most likely locality where our dreadful Llwyd would be placed. Why First, because, although Cemmes is accounted one of the seven cantreds of Dyfed, yet there are reasons to believe that Cemmes was, to some extent, distinct from, and an enemy of, Dyfed. Llwyd, being the bane of Dyfed, is therefore likely to have been assigned a place in that province. Secondly, because Cemmes has long been regarded by the sur- rounding peoples as a land of mystery. Those children of phantasy known as Plant Rhys Ddwfn are asso- ciated with it. Like Llwyd, they are able to place their country under enchantment, so that the aspect of it is changed or disappears altogether. In Cemmes grow their magical herbs and in that land also is to be found that square yard of soil whereon whoever stands straightway beholds the Realms of Faery, where Rhys Ddwfn and his children live (Celtic Folk- lore, p. 158). Of this there is no doubt that, although