Sant Riwari, also known as Saint Riware or Saint Riwall, was a sixth-century priest and aristocrat from the region of Armorica. As a member of the nobility, he is recognized as one of the semi-legendary Breton saints. He is noted for being the first priest to emigrate to the continent, arriving from the British Isles. His presence in the region preceded the establishment of permanent bishoprics and monasteries, which were later founded following his arrival.
Life and role

A relative of Saint Herve, Riwari held significant ecclesiastical influence. The Latin designation used for him, antistes, suggests he possessed considerable religious authority. Before his arrival, evangelization in Armorica was primarily conducted by itinerant leaders from the British Isles. His movement to the continent marked a transition toward more settled religious structures in the area.
Veneration
The saint is commemorated within the Orthodox tradition. His feast day is observed annually on 19 September. He remains a figure of historical and religious interest in the context of early Breton Christianity and the missionary efforts that shaped the region.
