During the 15th century the church was enhanced; the crossing tower's arch was blocked and three barrel vaulted chapels were added to the tower's western end and a door in the tower's southern wall led into what had been the cloister. The discovery of bones and skulls outside the east wall of the church has led to unsupported tales of the monks being slaughtered. Cistercian Abbey at Abbeyshrule, County Longford, Ireland.