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.

Sark is an island, part of the Channel Islands in the southwestern English Channel, off the coast of Normandy, France. It is a royal fief, which forms part of the Bailiwick of Guernsey, with its own set of laws based on Norman law and its own parliament. It has a population of about 500. Sark has an area of 2.10 square miles (5.44 km2). Little Sark is a peninsula joined by a natural but high and very narrow isthmus to the rest of Sark Island.