Right, Marienberg (Saxony, near the Czech border) became a city in 1521, and the medal commemorates the 300th anniversary. Here is one in gold (with information about the engraver) and one in silver (with some info about the mintage):
https://www.kuenker.de/AuktionDetai...&lager=00063
http://skd-online-collection.skd.mu...w?id=1273120
Christian
https://www.kuenker.de/AuktionDetai...&lager=00063
http://skd-online-collection.skd.mu...w?id=1273120
Christian





















