Writ of Holy Roman Emperor Louis IV [Present-day Germany]: “King Louis (‘Ludwig’) sends Sibodo, named Pape, in order that he raise/collect (‘erheben’) the taxes from the Jews in Dortmund.” [Researcher’s note: The above is a translation of a German summary of the original Latin text both of which can be found in the cited source.]
Fahne, Anton: Urkundenbuch der freien Reichsstadt Dortmund. 1. Abtheilung. (Köln/Bonn; 1855); (Book-of-writs of the free imperial city of Dortmund. 1. Section.) Cologne/Bonn; 1855; Researched and Translated by Ziba Shadjaani 8/3/2020