When was the Emperor of Austria and King of Hungary died who proclaimed December Constitution?
Franz Joseph I of Austria Franz Joseph I or Francis Joseph I (German: "Franz Josef I." , Hungarian: "I. Ferenc József" , , Romanian: "Francisc Iosif" , Slovene: "Franc Jožef I." , Italian: "Francesco Giuseppe" , Croatian: "Franjo Josip I." ) (18 August 1830 – 21 November 1916) was Emperor of Austria and King of Hungary, King of Bohemia and many others (see grand title of the Emperor of Austria) from 2 December 1848 until his death on 21 November 1916. From 1 May 1850 to 24 August 1866 he was also President of the German Confederation. He was the longest-reigning Emperor of Austria and King of Hungary, as well as the third longest-reigning monarch of any country in European history, after Louis XIV of France and Johann II of Liechtenstein.
Archduke Joseph August of Austria Archduke Joseph August Viktor Klemens Maria of Austria, Prince of Hungary and Bohemia (9 August 1872 – 6 July 1962) was for a short period head of state of Hungary. He was a member of the House of Habsburg-Lorraine, the eldest son of Archduke Joseph Karl of Austria (1833–1905) and his wife Princess Clotilde of Saxe-Coburg-Gotha (1846–1927). Joseph August's grandfather had been Palatine Joseph of Hungary (1776–1847), Palatine and Viceroy of Hungary, a younger son of Emperor Leopold II.