Romanzen vom Rosenkranz, book-length poem in German

According to Wikipedia: "Clemens Brentano, or Klemens Brentano (September 9, 1778 – July 28, 1842) was a German poet and novelist… Brentano, whose early writings were published under the pseudonym Maria, belonged to the Heidelberg group of German romantic writers, and his works are marked by excess of fantastic imagery and by abrupt, bizarre modes of expression. His first published writings were Satiren und poetische Spiele (1800), and a romance Godwi oder Das steinerne Bild der Mutter (1801); of his dramas the best are Ponce de Leon (1804), Victoria (1817) and Die Grundung Prags (1815). On the whole his finest work is the collection of Romanzen vom Rosenkranz (published posthumously in 1852); his short stories, and more especially the charming Geschichte vom braven Kasperl und dem schönen Annerl (1817), which has been translated into English, were very popular."