Battle of Les Formigues
1285 CE.
Shown on the map at 41.850°, 3.183°.
The naval battle of Les Formigues took place probably in the early morning of 4 September 1285 near Les Formigues Islands, Catalonia, about 85 km northeast of Barcelona, when a Catalan-Sicilian galley fleet commanded by Roger of Lauria defeated a French and Genoese galley fleet commanded by Guilhem de Lodeva, Henry di Mari, and John de Orrea. There are three almost completely different accounts of this battle: from Ramon Muntaner, Bernard Desclot, and the Gesta comitum Barchinonensium. The Gesta places the battle at Les Formigues (or Fomigas), while Muntaner favoured a location off Roses to the north. Either Lauria or the French were ashore for the night and encountered by the other, or they were both at sea when the encounter took place. The accounts agree that it happened at night, which was unusual for medieval naval battles, but suited Lauria who was skilled at night-fighting. He used two lanterns on each galley to increase his apparent numbers.
Text from the Wikipedia article Battle of Les Formigues, licensed CC BY-SA 4.0.