Main Page | See live article | Alphabetical index The Battle of Fuentes de Onoro was fought on May 3 - 5, 1811 and resulted in an undecided battle between French troops under Marshall Massena and British under Arthur Wellesley, 1st Duke of Wellington. Massena was forced to give up his attempt at taking Portugal. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.