High Quality Content by WIKIPEDIA articles! The Saintonge War was a feudal dynastic encounter that occurred in 1242 between forces of Louis IX of France and those of Henry III of England. Saintonge is the region around Saintes in the center-west of France. The conflict arose because some vassals of Louis were displeased with accession of his brother, Alphonse, as count of Poitou. The French decisively defeated the English at the Battle of Taillebourg and concluded the struggle at the Siege of Saintes, but because of dynastic sensibilities and the desire to go on a crusade, Louis did not annex Guyenne.