Urbanus Rhegius

Urbanus Henricus Rhegius or Urban Rieger (May 1489, in Langenargen – 23 May 1541, in Celle) was a Protestant Reformer who was active both in Northern and Southern Germany in order to promote ''Lutheran unity'' in the Holy Roman Empire. He was also a popular poet. Martin Luther referred to him as the "Bishop of Lower Saxony". Provided by Wikipedia