Otto von Lonsdorf

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Otto von Lonsdorf (also known as "Otto von Lonstorf"; * approx. 1200; † April 9 or 10, 1265 in Passau ) was Bishop of Passau from 1254 to 1265 .


Otto was the son of the Passau ministerial Heinrich von Lonsdorf and was probably trained at the Passau Cathedral School. He is documented for the first time in 1240 as a chaplain in the suite of Passau Bishop Rudiger . In the same year he was presumably pastor in Linz . In 1242 he was accepted into the cathedral chapter of Passau. He had benefices in Linz and Wartberg an der Krems . Before he was elected Bishop of Passau on February 10, 1254, he was archdeacon of the diocese. During his term of office, the Linz treaty of April 23, 1257 with King Ottokar II of Bohemia , directed against Bavaria , the coin reform of 1260, the renewed settlement with Bavaria in 1262 and the Ilzstadtweise in 1265. The Treaty of Oven ( 1254) and the Peace of Vienna (1261) . He was buried in St. Stephen's Cathedral in Passau , but his grave was destroyed in the city fire of 1662.

Codex Lonsdorfianus

Otto von Lonsdorf is best known for the copy book he created ( Codex Lonsdorfianus , mostly Codex Lonstorfianus in the 19th century ), which was updated into the 15th century. The Codex Lonsdorfianus includes copies of documents from the period from 504 to 1455 and was intended to record and secure the rights and property of the Passau church. The document book contains numerous important sources on medieval history outside the diocese (including the Raffelstetten customs regulations ). The full name of the collection is called Codex traditionum ecclesice Pataviensis olim Laureacensis tertius from episcopo Ottone de Lonsdorf concinnatus and is kept in the Bavarian Main State Archives in Munich under the title HL Passau 3 .

Selection of the documents recorded in the Codex Lonsdorfianus:


Abbot Hermann von Niederaltaich put the oldest memorial to his friend and contemporary in his Annales Althaensis . This is followed by the medieval chronicles of Wolfgang Marius von Aldersbach and Thomas Ebendorfer von Haselbach . In the 16th century Johannes Aventinus , Kaspar Brusch and Lorenz Hochwart von Tirschenreuth dealt with the work of Otto von Lonsdorf. Its collections are important sources for the Upper Austrian document book as well as for the Passau historiography.


  • Josef Breinbauer: Otto von Lonsdorf, Bishop of Passau, 1254–1265 (Passau historical research). Cologne 1992.
  • Josef Breinbauer:  Otto von Lonsdorf. In: New German Biography (NDB). Volume 19, Duncker & Humblot, Berlin 1999, ISBN 3-428-00200-8 , p. 691 ( digitized version ).
  • Franz Xaver Kohler: Otto von Lonsdorf, Prince-Bishop of Passau (1254–1265). l. Part: Outer government and historical personality of Otto. Program of the royal humanistic high school in Burghausen for the school year 1901/02. Burghausen 1902 ( digitized version ).
  • Ulrich Schmid: Otto von Lonsdorf. Bishop of Passau. 1254-1265. Inaugural dissertation, Verlag Göbel & Scherer, Würzburg 1903.

Web links

Individual evidence

  1. a b c d e Otto von Lonsdorf on, accessed on July 1, 2019.
  2. a b c Ludwig Edlbacher: The development of the assets of the episcopal church of Passau in Austria above and below the Enns from the 8th to the 11th century. In: Contributions to regional studies of Austria above the Enns. Linz 1870, p. 10, online (PDF) in the forum
  3. a b c Franz Wilflingseder : The former Lonstorf Castle near Linz and its owners. In: City of Linz, Municipal Collections (ed.): Special publications on the history of the city of Linz. Oberösterreichischer Landesverlag, Linz 1955, p. 7.