Carmina Burana
The texts were written down around 1230. This happened either in an abbey in Styria, or near Brixen. They were discovered by Johann Christoph von Aretin in Benediktbeuern Abbey in 1803. Today, they are in the Bavarian State Library in Munich. There they can be found there as Codex Buranus, with the signature clm 4660/4660a.