CASTIGLIONE DELLE STIVIERE  , a town of Lombardy, Italy, in the province of Mantua, 20 M . N.W. of Mantua by road . Pop . (1901) 4122 (town), 5940 (commune) . It has an old castle, much altered and restored, especially by the Gonzaga family of Mantua in the 16th century . During the War of the Spanish Succession, the French under the duke of Vendome occupied it; and during the siege of Mantua in 1796, the Austrians under Wurmser were defeated here by the French under Augereau, who was later created by Napoleon duke of Castiglione .