Note 844 — Chapter VIII · MOTTE-CASTLES IN NORTH WALES
Reading edition
The Brut says that in the year 823 the Saxons destroyed the Castle of Deganwy. This is one of the only two instances in which the word castell is used in this Welsh chronicle before the coming of the Normans. As the MS. is not earlier than the 14th century it would be idle to claim this as a proof of the existence of a castle at this period. Castell, in Welsh, is believed to have come straight from the Latin, and was applied to any kind of fortress. Lloyd, Welsh Place-names, “Y Cymmrodor,” xi., 28.