Ottokar Lorenz (17 September 1832 – 13 May 1904) was an Austrian-Germanhistorian andgenealogist. He was born inIglau (now Jihlava, Czech Republic) and died inJena. He was the father of chemistRichard Lorenz (1863-1929).

He studiedphilology, history and philosophy in Vienna, where his instructors includedHermann Bonitz,Joseph Aschbach andAlbert Jäger. From 1861 to 1885, Lorenz was a professor of history at theUniversity of Vienna, being appointedrector in 1880.^[1] Afterwards, he was a professor at theUniversity of Jena.

He was a founder of modern "scientificgenealogy". Some of his better written efforts are as follows:

• Deutsche Geschichte im 13. und 14. Jahrhundert, ("German history in the 13th and 14th centuries"), two volumes (1863–67).
• Drei Bücher Geschichte (1876; 2nd ed., 1879) (Three books of History).^[2]
• Deutschlands Geschichtsquellen im Mittelalter seit der Mitte des 13. Jahrhunderts [German history from the middle of the 13th Century]. W. Hertz., two volumes, 1886–87.
• Geschichte des Elsasses, ("History ofAlsace"); withWilhelm Scherer, 3rd edition 1886.^[3]
• Genealogisches Handbuch der europäischen Staatengeschichte, ("Genealogical textbook of European states history"), (1892).
• Lehrbuch der wissenschaftlichen Genealogie, ("Textbook of scientific genealogy"), (1898).

• Ottokar Lorenz @AEIOU Encyclopedia

• Genealogy and human heredity in Germany around 1900
• OnLine Books Page bibliography

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