He confessed to the registrar that near Ipswich in the county of “Nothfolch,” he had stabbed gentleman Robert Hause on the arm with a wood knife. Ipswich is in Suffolk, not Norfolk (as Matthew Paris knew in the 13th century – spelled Gipewich here, lower right).
I guess from the vantagepoint of Durham all the southern counties were interchangeable. Hause died from the wound Perpound gave him, and so Perpound was granted sanctuary for homicide.
Both maps: Matthew Paris’s map of Britain, 13th century