sentences:  This is a repetition of information known from earlier sources, except that the assertion that Pehthelm was Aldhelm's disciple (or pupil) is William's own characterisation.In the "Chronicon ex chronicis" (1140), John of Worcester notes that Pehthelm of Candida Casa is one of the four bishops of Northumberland in 731, and that he died in 735 and was succeeded by Frithowald.This is a repetition of information from earlier sources.