sentences:  She witnessed the German campaign of the Napoleonic Wars as a military hospital nurse in Cologne and Namur.After she had openly criticised the miserable conditions in the field, she was accused of libel, but was acquitted by the Berlin Kammergericht court under presiding judge E. T. A. Hoffmann.From 1817 she lived in Dresden, where she wrote the libretto of Carl Maria von Weber's opera "Euryanthe".