Though the local administration was Italian in language and staff, the Austrian authorities had to cope with the Italian unification ("Risorgimento") movement. After a popular revolution on 22 March 1848, known as the "Five Days of Milan", the Austrians fled from Milan, which became the capital city of a "Governo Provvisorio della Lombardia" (Lombardy Provisional Government). The next day, Venice also rose against the Austrian rule, forming the "Governo Provvisorio di Venezia" (Venice Provisional Government). The Austrian forces under Field Marshal Joseph Radetzky, after defeating the Sardinian troops at the Battle of Custoza (24–25 July 1848), entered Milan (6 August) and Venice (24 August 1849), and once again restored Austrian rule.