Just found about her today : https://en.wikipedia.org/wiki/Hrotsvitha
Hrotsvit, Hrosvite, Hroswitha, Hroswithe, Rhotswitha, Roswit, Roswindis or Roswitha was a Medieval Catholic nun who is considered to be the first female writer from the Germanosphere, the first female historian, the first person since the Fall of the Roman Empire to write theatrical pieces in the Latin West, and the first German female poet...
Another page about her this one from the Catholic Encyclopedia : https://www.newadvent.org/cathen/07504b.htm