Science and Art; the King of Sweden gave the Nordstern Orden; and the King of Portugal made Wilhelm Haidinger Commander in the Portuguese Order of Christ. Although Wilhelm Haidinger had never completed his academic training, he was promoted to Doctor honoris causa in philosophy by the Charles University in Prague and to Doctor honoris causa in medicine by the University of Jena (see: Von Wurzbach, 1861). After a short illness Wilhelm Haidinger died at his home in Vienna on 19 March 1871. Optical Research Haidinger fringe See also Haidinger's brush Notes and References Further reading 1795 births 1871 deaths Scientists from Vienna 19th-century Austrian geologists Austrian mineralogists Austrian knights 19th-century Austrian physicists Recipients of the Pour le Mérite (civil class) Members of the Austrian Academy of Sciences Foreign Members of the Royal Society Corresponding members of the Saint Petersburg Academy of Sciences Burials at the Vienna Central Cemetery