Niederdorf is a municipality in the district Erzgebirgskreis, in Saxony, Germany.
Like Niederdorf it was part of the village of Onoldswil, until that village was dissolved in the 13th Century.
Medieval Denzlingen consisted of two separate settlements, Niederdorf and Oberdorf (Lower Village and Upper Village), both on the Glotter and alongside an old road from Riegel to the Glottertal.
In the valley the following municipalities are located: Sillian, Lienz, Sexten, Innichen, Toblach, Niederdorf, Prags and Anras.
A message was sent to Wehrmacht troops at Sexten 17 km east of Niederdorf commanded by Captain Wichard von Alvensleben, who decided to come and protect the prisoners with his soldiers.