Dénes Kőnig
Hungarian mathematician
Dénes Kőnig was a Hungarian mathematician of Hungarian Jewish heritage who worked in and wrote the first textbook on the field of graph theory. Wikipedia
Born: September 21, 1884, Budapest, Hungary
Died: October 19, 1944 (age 60 years), Budapest, Hungary
Education: Budapest University of Technology and Economics (1907–1907), University of Göttingen (1904–1906), and Eötvös Loránd University (1902–1904)
Parents: Gyula Kőnig