"Portrait of Ferdinand Duke of Brunswick-Wolfenbüttel (1721-1792)", Friedrich Georg Weitsch, 1778
"this portrait is directly based upon an original of circa 1770 by johann georg ziesenis, today in the neues schloss, bayreuth (inv. G6). ". Object Type: painting. Date: 1778. Dimensions: height: 57 cm (22.4 in); width: 46 cm (18.1 in). Medium: oil on canvas. Depicted People: Duke Ferdinand of Brunswick-Wolfenbüttel (1721-1792). Collection: Schlossmuseum Braunschweig. Weitsch after Ziesenis - Ferdinand of Brunswick-Wolfenbüttel