Llantwit Major was a very important centre of Celtic Welsh Christianity. St Illtud founded a monastic centre here which trained monks in literature and mission. Many famous saints are associated with the centre including St David, patron saint of Wales, St Samson, St Dubricius, St Beuno and others. Today it is still a place of pilgrimage and holiness. There are several ancient Celtic carved crosses housed in the church dating back to the early medieval period. It's also a very special place to pray with Christians having prayed on this site for over 1600 years continually.