Amen Corner is a street located off Ave Maria Lane, just to the west of St. Paul's Cathedral and between the Old Bailey and Paternoster Square, in the City of London. On the feastday of Corpus Christi, monks would say prayers in a procession to St. Paul's Cathedral. They set off from Paternoster Row chanting the Lord's Prayer (Pater noster... being the opening line in Latin). They would reach the final 'amen' as they turned the corner in Ave Maria Lane, after which they would chant Hail Mary (Ave Maria in Latin).