Duchy of Modena and Reggio
The Duchy of Modena and Reggio (, ) was a small northwestern Italian state that existed from 1452 to 1859, with a break during the Napoleonic Wars (1796–1814) when Emperor Napoleon I reorganized the states and republics of renaissance-era Italy, then under the domination of his French Empire. It was ruled since its establishment by the noble House of Este, and since 1814 by the Austria-Este branch of the family.