When were the revolutions that Joanneum was named after this member of the House of Habsburg-Lorraine?
Archduke John of Austria Archduke John of Austria (German: "Erzherzog Johann Baptist Joseph Fabian Sebastian von Österreich" ; 20 January 1782 – 11 May 1859), a member of the House of Habsburg-Lorraine, was an Austrian field marshal and Imperial regent ("Reichsverweser") of the short-lived German Empire during the Revolutions of 1848.
Archduke Karl Salvator of Austria Archduke Karl Salvator of Austria, in Italian Carlo Salvatore Maria Giuseppe Giovanni Battista Filippo Jacopo Gennaro Lodovico Gonzaga Raniero, in German Karl Salvator Maria Joseph Johann Baptist Philipp Jakob Januarius Ludwig Gonzaga Ranier (Florence, 30 April 1839 – Vienna, 18 January 1892), was a member of the Tuscan branch of the House of Habsburg.