During the Manchester Blitz in 1940, a German bomb exploded a few yards from the north-east corner, severely damaging the cathedral roofs and demolishing the medieval lady chapel and James Stanley's chantry chapel. All stained-glass windows were blown out, the organ-case over the pulpitum was destroyed, and the medieval choir stalls toppled inwards so as to meet one another. It took almost 20 years to complete the repairs, in the course of which the Lady Chapel was rebuilt to the designs of Hubert Worthington and the St John the Baptist Chapel was refitted as the regiment chapel for the Manchester Regiment. The cathedral was again damaged in the IRA bombing in June 1996.