Jonas Umbach ( 1624 - 1693 ) was a German painter. Jonas Umbach s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 468.87 USD for A mountainous landscape with a tower, two travellers on a road in the foreground in 2004 to 5411.64 USD for Ruhender Hirte mit der Schalmei in 2005 , based on the size and medium of the artwork.