Johann Leopold Riedel		JOHANN LEOPOLD RIEDEL(3rd Generation) Johann Leopold Riedel, 3rd generation (1726-1800), made his fortune in the Seven Year War (1756-1763) fought between the Austrians and the Prussians over Bohemia and Schlesia. The demand for window panes needed for rebuilding the surrounding cities and villages destroyed during the war, offered Johann the chance to found his first glass factory, which he opened on May 17, 1756. His success was based on a his invention of a technique that substituted stained glass windows with window panes. Johann Christoph Riedel (1st) Johann Carl Riedel (2nd) Johann Leopold Riedel (3rd) Anton Leopold Riedel (4th) Franz Xaver Riedel (5th) Josef Riedel, The Elder (6th) Josef Riedel, The Younger (7th) Walter Riedel (8th) Claus Josef Riedel (9th) Georg Josef Riedel (10th) Laetizia Riedel (11th) Maximilian Josef Riedel (11th)