The lyrics are commonly dated 1745. Ingeborg has a version of 102 stanzas which looks quite original to me, whereas German Wikipedia states "The song was rewritten and extended several times; among others a version of more that 100 stanzas exists".

A version localized for Leipzig in 1815 (books.google.de/books?id=-glFAAAAIAAJ&pg=PA82)(remember Battle of Leipzig 1813!) seems particularly interesting to me, it resembles the newer versions mentioned by the other posters above. If two persons ask, I'll transcribe and translate it to the best of my competence.