Quémènès or Quemenes ( ; ) is an island in the Molène Archipelago in the Atlantic off Brittany, France. As of 2023, it has a population of 3. It is administered as part of the commune of Le Conquet, St-Renan Canton, Brest Arrondissement, in Finistère Department.
In 1292, two sailors, one Norman and one Bayonnais, quarreled over who would draw water from a well on the island first. The dispute ended in murder, probably of the Norman, and other Norman and French sailors began to assault Aquitainian & English shipping and ports. This eventually escalated into the 1294âÂÂ1303 Gascon War, which ended in a general return to the but whose financing provoked a clerical crisis leading to the Avignon Papacy and whose settlement terms produced the marriage leading to the Hundred Years' War.
Quémènès lies from Molène, the chief island of the archipelago.