Magloire, better known as Saint Magloire of Dol, is a Breton saint. Little reliable information is known of Magloire as the earliest written sources appeared three centuries after his death. These sources claim that he was a monk from Wales who became the Bishop of Dol-de-Bretagne in Brittany during the 6th century, and ended his life on the island of Sark, where he was abbot of a monastery.
Source : Wikipedia