Nicolaus von Amsdorf, German theologian and Protestant reformer (d. 1565)
Nicolaus von Amsdorf (German: Nikolaus von Amsdorf, 3 December 1483 – 14 May 1565) was a German Lutheran theologian and an early Protestant reformer. As bishop of Naumburg (1542–1546), he became the first Lutheran bishop in the Holy Roman Empire.