In France in 1852, voters were asked whether they approved of the re-establishment of the Empire in the person of Louis Napoléon Bonaparte,  the only president of what republic?
Napoleon III Louis-Napoléon Bonaparte (born Charles-Louis Napoléon Bonaparte; 20 April 1808 – 9 January 1873) was the President of France from 1848 to 1852 and, as Napoleon III, the Emperor of the French from 1852 to 1870. He was the only president of the French Second Republic and the head of the Second French Empire.
Napoleonic studies Napoleonic studies (French: "Études Napoléoniennes" ; Russian: Наполеоновские исследования ) is a field of historical research devoted to Napoleon and the Napoleonic era (1799–1815), encompassing the time period from the French Revolution through the Napoleonic Wars.