15th century (ca.1410) France (Paris)       Genève, Bibliothèque de Genève Ms. fr. 190/1:  Des cas des nobles hommes et femmes by Giovanni Boccaccio fol. 74v - wife of Candaules; being watched by her husband and Gyges http://www.e-codices.unifr.ch/en/list/one/bge/fr0190-1