John Cowper Powys Bu'r nofelydd yn byw yng Nghorwen rhwng 1935 a 1955. Yma yr ysgrifennodd ddwy nofel o bwys sef Owen Glendower a Porius. The novelist lived in Corwen from 1935 to 1955. He wrote two major novels Owen Glendower and Porius while here.

English translation: "John Cowper Powys The novelist lived in Corwen between 1935 and 1955. Here he wrote two major novels, Owen Glendower and Porius. The novelist lived in Corwen from 1935 to 1955. He wrote two major novels Owen Glendower and Porius while here. [AWS Translate]"