The Infante Ferdinand of Portugal (1188-1233), Count of Flanders (1215-1233), was taken prisoner at the Battle of Bouvines on 27 July 1214. The battle fought between an international coalition formed by troops of the Count of Flanders, Raynald of Dammartin (Count of Boulogne), King John of England and the Holy Roman Emperor Otto IV, against the army of King Philip II Augustus of France. The French army defeated the coalition. Ferdinand of Portugal was captured and taken chained to Paris to be imprisoned in the dungeons of the Louvre, from where he was not released until 6 January 1227. Engraving after a miniature in "Chroniques de Hainaut", 1446-1448. "Vie Militaire et Religieuse au Moyen Age et a lEpoque de la Renaissance". Paris, 1877.