Regulation regarding “Legitimation” of Jews issued by the Prussian government [Present-day Germany, Poland, Lithuania; Kingdom of Prussia]: “The execution of the edict from March 11, 1812, requires the following additional regulations: 1) The registers/records of Jewish families living in the Kurmark/Electorate of Marck […] have been finalized for the most part, and therefore, it is mostly known which heads-of-families and […] family members are to be recognized as residents and Prussian citizens, […] all Jew are to legitimize themselves in the following manner. 1) All independent/self-employed individuals (heads-of-families), namely a) those, who were already in the domain before March 24, 1812, by producing a letter-of-citizenship issued by the government; b) those foreigners who were naturalized after March 24, 1812, by producing a naturalization-record from the common royal police-department. […]” [Researcher’s note: The above regulation has been abbreviated to fit the allocated space and can be found in the cited source.]
Heinemann, Jeremiah: Sammlung der die religiöse und bürgerliche Verfassung der Juden in den königlich Preussischen Staaten betreffenden Gesetze, Verordnungen, Gutachten, Berichte und Erkenntnisse (Collection of laws, ordinances, evaluations, reports and findings regarding the religious and civil constitution of Jews in the Prussian States). (Glogow; 1831); Researched and Translated by Ziba Shadjaani 5/30/2020