St. Brendan the Navigator Custom MedalAvailable in Sterling Silver, 14kt Yellow Gold, and 14kt Gold Filled. Three sizes to choose from: Large: 1 x 3 4 inch Standard: 3 4 x 1 2 inch Charm: 1 2 x 1 4 inch Saint Brendan established monasteries and traveled the seas, but little is truthfully known of his voyages. It is said he encountered mermaids and sailed to the Americas, but there is no proof to support the tales. Born: 460 Ireland Died: 577 Ireland Patronage: Boatmen, Divers, Mariners,