The unpublished travel accounts of Crown Prince Friedrich Christian (1722-63) of Saxony/Poland, a disabled teenager touring Italy in 1738-40 as 'Comte de Lusace', and related documentation and research by Maureen Cassidy-Geiger
Maureen Cassidy-Geiger: “Je reçus le Soir le monde marqué”: A Crown Prince of Saxony on the Grand Tour in Italy, 1738-1740 (2004)