Josef Stefan was a Carinthian Slovene physicist, mathematician, and poet of the Austrian Empire. Wikipedia
Born: March 24, 1835, Klagenfurt am Wörthersee, Austria
Died: January 7, 1893 (age 57 years), Vienna, Austria
Education: University of Vienna
Awards: Lieben Prize
Parents: Aleš Stefan and Marija Startinik
Doctoral students: Ludwig Boltzmann; Marian Smoluchowski; Johann Josef Loschmidt