Modena

Duchy of Modena and Reggio de facto · 1789 – May 6, 1796 (from the border data)
Cisalpine Republic de facto · June 29, 1797 – January 25, 1802 (from the border data)
Kingdom of Italy (Napoleonic) de facto · March 17, 1805 – April 11, 1814 (from the border data)
Duchy of Modena and Reggio de facto · July 14, 1814 – December 31, 1858 (from the border data)
Kingdom of Sardinia de facto · March 24, 1860 – March 17, 1861 (from the border data)
Italy de facto · March 17, 1861 – September 7, 1943 (from the border data)
Germany de facto · September 9, 1943 – April 8, 1945 Military occupation (from the border data)
Italy de facto · since April 29, 1945 (from the border data)