Mold.
Welshpool.
Wrexham.
Mathraval.
Fig. 40.—Motte-Castles of North Wales.
It is clear from the Life of Griffith ap Cynan[848] that the Earl of Chester had conquered and incastellated Gwynedd before the accession of William Rufus. This valuable document unfortunately gives no dates, but it mentions in particular the castle at Aberlleinog,[849] one at Carnarvon, one at Bangor, and one in Merioneth. The motte at Aberlleinog, near Beaumaris, still exists, and the half-moon bailey is traceable, but the curious little round towers and revetting wall in masonry on the motte were probably built to carry guns at the time of the Civil War, when this castle was besieged by the Royalists. At Carnarvon the magnificent castle of Edward I. has displaced all former erections, yet some evidence for a motte-and-bailey plan may be found in the fact that the northern portion of the castle has evidently been once separated by a ditch from the southern, and is also much higher.[850] On the hills above Bangor, Pennant thought he had discovered the remains of Earl Hugh’s castle, but having carefully examined these walls, we are convinced that they never formed part of a castle at all, as they are much too thin; nor are there any vestiges of earthworks.[851] We are disposed to think that instead of at Bangor, the castle of Earl Hugh was at Aber, often spoken of as Abermenai in the Chronicles, and evidently the most important port on the Straits. At Aber there still remains a motte which must have belonged to an important castle, as it was afterwards one of the seats of Llywelyn ap Jorwerth, Prince of Gwynedd. The castle in Merioneth cannot be certainly identified.