Little is known about Ewe, who is believed to have come from Wales to evangelize the area of mid-Cornwall, England. From the 12th century on, Ewe was said to have been a woman. It is also thought that Ewe may be the same as St. Theo of Brittany, as Th was often placed at the beginning of saints’ names beginning in vowels. The latter possibility is unlikely. A church probably built by the saint exists in the parish of St. Ewe and is dated to the sixth century.