This small portrait in miniature is one of the ornamental paintings in the illuminated “Livred’ Heures” (Book of Hours) which belonged to Catherine de’ Medicis the mother in law of Mary Stuart.
It shows Francois, Dauphin of France and Mary Stuart.
This is part of a series of portraitts of all the children of Henri II and Catherine de’Medicis and the wives of those who were then married.