Saint Conwoïon was a Breton saint and abbot. He was probably born around 800 at Comblessac into a Gallo-Roman family descended, or claiming descent, from Roman senators.

Nominoe or Nomenoe was the first Duke of Brittany from 846 to his death. He is the Breton pater patriae and to Breton nationalists he is known as Tad ar Vro.