The Second French Empire was a French state proclaimed by Napoleon III when he declared himself Emperor in 1852. (PROSE: World Game)
The Eleventh Doctor and Amy Pond visited the Second French Empire, travelling to Paris in 1858. (COMIC: The Screams of Death)
The Second French Empire came to an end in 1870 when France suffered a disastrous defeat against Prussia in the Franco-Prussian war. Napoleon III was ousted and the Third French Republic was proclaimed. (PROSE: World Game)