Maureen Cassidy-Geiger, "I suppose you know he has been lame from his birth, though a beautiful person from the waist upwards" Portraits of Friedrich Christian, Crown Prince of Saxony, in images and words, in Anton Raphael Mengs, Portrait of Friedrich Christian Prince of Saxony (1722-1763), hg. von Thos. Agnew & Sons/ Nikolaus Karlson, London 2023, 13-5313-53