We have now completed our list of the Norman castles built in Wales which are known to history. It must not be supposed, however, that we imagine this to be a complete list of all the Norman castles which were ever erected in Wales. The fact that several in our catalogue are only once mentioned in the records makes it probable that there were many others which have never been mentioned at all. In this way we may account for the many mottes which remain in Wales about which history is entirely silent. As there was scarcely a corner in Wales into which the Normans did not penetrate at some time or other, it is not surprising if we find them in districts which are generally reckoned to be entirely Welsh. But there is another way of accounting for them; some of them may have been built by the Welsh themselves, in imitation of the Normans. As the feudal system and feudal ideas penetrated more and more into Wales, and the Welsh princes themselves became feudal homagers of the kings of England, it was natural that the feudal castle should also become a Welsh institution, especially as it was soon found to be a great addition to the chieftain's personal strength. The following castles are stated in the _Brut_ to have been built by the Welsh.[995] 1113. *CYMMER, in Merioneth.--Built by Uchtred ap Edwin, whose name, as we have already remarked, suggests an English descent. Near Cymmer Abbey the motte or _tomen_ remains. *CYNFAEL, in Merioneth, near Towyn.--Built by Cadwalader, son of Griffith ap Cynan, on whose behalf Henry II. undertook his first expedition into Wales, and who was at that time a protégé of the Anglo-Normans. Clark gives a plan of this motte-castle in _Arch. Camb._, 4th ser., vi., 66. 1148. *YALE, in Denbigh = Llanarmon.--Said to have been built by Owen Gwynedd, but here, as we have said, an earlier Norman foundation seems probable (see p. 272). 1148. LLANRHYSTYD, in Cardigan.--Also built by Cadwalader, who was then establishing himself in Cardigan. Probably the motte and bailey called Penrhos, or Castell Rhos, to the east of Llanrhystyd village. [H. W.] 1155. ABERDOVEY.--Built by Rhys ap Griffith to defend Cardigan against Owen, Prince of Gwynedd. It must therefore have been on the Cardigan shore of the Dovey, and not at the present town of Aberdovey, which is on the Merioneth shore. And in fact, on the Cardigan shore of the estuary, about two miles west of Glandovey Castle, there is a tumulus called Domenlas (the green tump), which was very likely the site of this castle of Rhys.[996] 1155. CAEREINION.--Built by Madoc of Powys, who was then a homager of Henry II. Remains of a motte near the church; the churchyard itself appears to be the former bailey. About a mile off is a British camp called Pen y Voel, which _may_ have been the seat of the son of Cunedda, who is said to have settled here. [H. W.]