St Fingar

There is also a 5th century Irish saint commemorated today, although his commmemoration seems to be limited to Cornwall and Brittany.

Herewith Mrs D'Arcy's summary of his life:

Fingar, a prince of Connaught and one of Patrick's converts, is described as a pilgrim saint who went first to Armorica (northwestern France) where he is commemorated at Vannes in Brittany. Soon after landing at the mouth of the Hayle in Cornwall, he and his sister Piala and a number of companions were put to death. They are named in the British Martyrology.