Hans Kotter
1480 — 1541
Hans Kotter, sometimes given as Hans Cotter, Hans Kotterer, or Hans Kotther, (1480–1541) was a German composer and organist of the Renaissance. Although organ music was not popular or enthusiastically supported in Strasbourg in the early Reformation years, the first known organ chorales were composed by Kotter.
Adapted from the Wikipedia article on Hans Kotter.