Franz Joseph Spiegler
 Franz Joseph Spiegler (5 April 1691 – 15 April 1757) was a German Baroque painter. He is best known for his frescoes which decorate many of the churches and monasteries along the Upper Swabian Baroque Route. The frescoes in the Zwiefalten Abbey are considered his masterpiece.Spiegler was born the Free Imperial City of Wangen im Allgäu the son of a district court attorney.