Eleonora Gonzaga (18 November 1630 – 6 December 1686), was by birth Princess of Mantua, Nevers and Rethel from the Nevers branch of the House of Gonzaga and was Holy Roman Empress, German Queen, Queen consort of Hungary and Bohemia by marriage to Emperor Ferdinand III.. Nicknamed the Younger (de: Jüngere) to distinguish herself from her namesake …