On his return from the crusades in late 1192, French ports were closed to Richard I of England whereupon he took to travel through Styria and Austria. Richard had made an enemy of Leopold V, duke of Austria, by casting down his standard at Acre. Near the refuge of his brother-in-law, Henry of Saxony, on 20 December, Richard was recognised and captured by followers of Leopold V on the outskirts of Vienna. Six days later, Leopold's horse crushed the duke's foot in a fall. In the following year he handed over his hostage to the emperor, Henry V. For recent writing, see Jonathan Riley-Smith, The crusades: a history (2nd. ed. London 2005), 146.