https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/biografien/biografien-eng/guericke-biografie-gb.pdf
arrested and imprisoned in the camp in Fermersleben (near Magdeburg). Soon Louis I, Prince of Anhalt-Köthen bought Guericke out for 300 thalers. Guericke moved then to Erfurt, where he became the fortifications
https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/zip/zip-eng/guericke.zip