Johann Wilhelm Baur . Aliases: Johann Wilhelm Bauer; Joan Guiliam Bouwer; ( 1607 - 1642 ) was a German painter. Johann Wilhelm Baur s works have been put up for auction numerous times, with realized prices varying from 3479.42 USD for Landskap med ryttare - 2st in 2004 to 98500 USD for VIEW OF THE VILLA D'ESTE AND GARDENS, TIVOLI in 2009 , based on the size and medium of the artwork.