After Franz Riedel's (Fifth Generation, 1786–1844) death, his son-in-law Josef and daughter Marie Anna moved into the manor house in Antoniwald and Josef took over the reins of the Klein Iser and Antoniwald Works. However, he did not own any share of his wife's businesses. In 1840, the glassworks in Antoniwald produced an annual 761 tons of clear and coloured glass, small bottles, chandelier trimmings and glass rods. Antoniwald also saw the birth of the couple's sons Hugo (1848–1883), Wilhelm (1849–1929) and Otto (1853–1901).