 The castle 's northern wing originally contained a dining hall , but this was later divided up to make more luxurious quarters for the Prince Bishop . This area is also home to the two chapels of the college . The Norman Chapel dates from the 11th century and is the oldest accessible part of the castle , and retains its original Saxon architectural style . The <unk> Chapel is the larger of the two ; it dates from the 15th century and is named after Cuthbert <unk> . Both chapels are used for worship within the college . 
