Riwari

Saint Riwari (also known as Rivoare, Riware, Riwall, Rivoal or Rioual) is one of the semi-⁠legendary Breton saints of Armorica. He was a priest of the sixth century and an uncle of Saint Herve. Tradition calls him "the first emigrant priest on the continent": the Latin word that designates him, antistes, implies ecclesiastical authority, and bishoprics and monasteries were established only after his arrival in Armorica. Until then the missionaries who came from the British Isles were generally itinerant, without a fixed place on the continent.

His feast is kept on 19 September (new style, Western calendar). He is a saint of the undivided Church, honoured locally, without synodal canonization.