Augsburg was a city and episcopal see in Bavaria, and a centre for the production of fine metalwork, which in the sixteenth century included portable sundials and other mathematical instruments. Like the nearby south-German city of Nuremberg, it benefited from its success as a centre for trade with distant parts of Europe, under the influence of such powerful merchant princes as the Fuggers and Welsers. The most famous Augsburg maker of the period was Christoph Schissler.