 The ends of Norwich and Canterbury also have projecting chapels, that at Norwich being a Gothic addition to the Norman east end, while that at Canterbury, known as the Corona, being designed as part of the Early English plan, specifically to enshrine the relic of the crown of Thomas Becket ’ s skull, sliced off at the time of his assassination. The east ends of a number of other cathedrals, such as Durham, Peterborough and Gloucester, have been modified in various ways and do not fit any particular model.
