"The Shipman's Tale" (also called The Sailor's Tale) is one of The Canterbury Tales by Geoffrey Chaucer. It is in the form of a fabliau and tells the story of a merchant, his wife and her lover, a monk. Although similar stories can be found in Boccaccio's Decameron, a frequent source for Chaucer's tales, the story is a retelling of a common type of folktale called "the lover's gift regained". Source: Wikipedia (en)