"Georg Rhau (Rhaw) (1488 – 6 August 1548) was a German publisher and composer. He was one of the most significant music printers in Germany in ...
the first half of the 16th century, during the early period of the Protestant Reformation. He was principally active in Wittenberg, Saxony, the town where Martin Luther is said to have nailed the Ninety-five Theses to the door of the Castle Church, initiating the Reformation. Rhau's support as a printer was critical to Luther's success." - (en.wikipedia.org 28.06.2021)
