Hofrat Leopold Pfaundler

Notes:

Leopold Pfaundler von Hadermur (14 February 1839 - 6 May 1920) was an Austrian physicist and chemist born in Innsbruck. He was the father of pediatrician Meinhard von Pfaundler (1872-1947), and the father-in-law of pediatrician Theodor Escherich (1857-1911).

He studied under chemist Heinrich Hlasiwetz (1825-1875) at Innsbruck, with Justus von Liebig (1803-1873) at the University of Munich, and with Henri Victor Regnault (1810-1878) and Charles Adolphe Wurtz (1817-1884) in Paris. In 1861 he received his doctorate, and in 1867 was appointed professor of physics at the University of Innsbruck. In 1891 he succeeded Ludwig Boltzmann (1844-1906) as professor of physics at the University of Graz. In 1887 he became a full member of the Vienna Academy of Sciences.

Pfaundler is remembered today for his kinetic-molecular explanation of gas reactions under the condition of equilibrium. He was the inventor of a number of scientific apparatuses - devices he often utilized in classroom demonstrations. These included a temperature regulator (1863), a Stromkalorimeter (1869), a differential air thermometer (1875), a seismograph (1897) and a distance meter (1915), to name a few. He is also credited with creating a device for optical demonstration of Lissajous figures (1873).

In 1863-64 he performed a survey of the Stubaier Alps with Ludwig Barth zu Barthenau (1839-1890), and in 1864 he was the first person to ascend to the summit of the Hofmannspitze (3112m).



Pfaundler was active in several scientific societies and also served as Rector of the University of Innsbruck in 1880. He was an avid mountain climber and photographer of mountain landscapes, for which he received a silver medal at the 1901 International Photographic Exhibition, as well as an early enthusiast of the Japanese game of Go on which he published a book in 1908.

Other interests included ecology and the carrying capacity of the earth and advocacy of an artificial international language for use in the scientific literature. Indeed, in 1914 he published a photographic lexicon in Ido, a simplified version of Esperanto. He died in Graz in May of 1920 at age 81.



Leopold, university professor of physics at the University of Innsbruck in 1891, received a professorship at the University of Graz. There Hermann visited the High School and studied at the University of Graz. He received his doctorate in 1904 from Dr. iur. and then was in the Styrian service as an official. After temporary use in the Central Statistical Commission in Vienna, he came into the k. k. Telegraph Correspondence-Bureau. In 1916, he was assistant director; he was a delegate of the 1917/1918 Bureau in the peace negotiations at Brest-Litovsk in 1933, and in 1926 he took over the management of the official news agency (formerly Burau). After that, he was undersecretary and Section Head of the chancellor's office. The summer months Pfaundler held regularly in Tyrol, was an avid mountaineer and made several first ascents.

Received the title of nobility with the title "von Hadermur" on 9 Nov 1910

Leopold married Amalie Steffan on 2 Aug 1869. Amalie was born on 30 Sep 1843; died in unk.. [Group Sheet] [Family Chart]

1. Margarethe Pfaundler was born on 8 Jul 1870; died in 1946.
2. Meinhard Pfaundler was born on 7 Jun 1872 in Innsbruck AT; died on 20 Jun 1947 in Oetz, Tyrol AT.
3. Richard Pfaundler was born on 25 Jan 1882; died in 1959.
4. Hermann Pfaundler was born on 12 Dec 1882 in Innsbruck AT; died on 14 Aug 1972 in Piburg, Tyrol AT.

Notes:

Lawyer, University Professor

Ignaz married Rosine Bolland on 10 May 1838. Rosine was born on 16 Nov 1816; died on 17 Aug 1892. [Group Sheet] [Family Chart]

Notes:

Title Dr. juris or Doctor of Laws, Lawyer

Johann married Josefa Winkler on 20 Oct 1800. Josefa was born in 1768; died on 14 May 1838. [Group Sheet] [Family Chart]

Other Events and Attributes:

• Altern Name: Benedikt

Notes:

Customs official in Kufstein, a town in the Austrian state of Tyrol. For more information: https://en.wikipedia.org/wiki/Kufstein

Birthdate listed on 1915 version of tree: 14 Mar 1736

Altern Name:
Version of name used in 1915 version of Pfaundler Family Tree

Josef married Maria Anna von Tschusi zu Schmiedhofen on 3 Feb 1766. Maria was born in unk.; died on 9 May 1797. [Group Sheet] [Family Chart]