Early glass engraving of high quality in Germany is connected mainly with Nuremberg. Its fame has overshadowed that of other places, such as Frankfurt, where three generations of the Hess family, which was originally from Thuringia, were active during the second half of the 17th century. This article focuses on the ties of the family-primarily the founder of the dynasty, Johann Hess, and his ... [Show full abstract] highly skilled son Joh. Benedikt Hess I-to Nuremberg and Thuringia, and it documents their efforts to develop an individual style of engraving. Apparently, their work was very successful. Johann Hess came to Frankfurt from Tambach Thuringia in 1642, and when he died in 1689 at the age of 84, he was both famous and prosperous. His workshop apparently took orders both from Frankfurt patricians and from the dukes of Saxony-Gotha. Nearly all of the glasses made by the Hess workshop have been published only sporadically, with incorrect attributions and insufficient illustrations. Some of the glasses are newly attributed here. Copper prints and woodcuts used for the compositions have been identified.