Synod of Brefi
[1] The synod was apparently called in order to condemn the heretical teachings of Pelagius.It was Paulinus who advised Saint Dubricius, the senior bishop there, to invite David, a minor abbot, to the synod.[2] David kept aloof from all temporal concerns and was initially reluctant to attend.[3] St David's Church, Llanddewi Brefi is the site associated with St David's best known miracle, when, according to tradition, the ground rose up under his feet as he addressed the large crowd so that he could be heard better.Saint Cybi is said to have attended the Synod[6] and advised some pilgrims on their journey to Ynys Enlli (Bardsey).