Both sides were reinforced before Alvinczy launched another attack in January. Bonaparte defeated this renewed assault at the Battle of Rivoli, inflicting some 14,000 casualties. Then he surrounded and captured a second Austrian relief column near Mantua. Soon after, Mantua finally surrendered to the French, making it possible for the French to continue their advance eastwards towards Austria. After a brief campaign during which the Austrian army was commanded by the Emperor's brother, the Archduke Charles, the French advanced to within 100 miles of Vienna, and the Austrians sued for peace. Bonaparte's campaign was important in bringing an end to the War of the First Coalition.