Oil on canvas, 36cm by 62cm.
Elizabeth Stuart was the daughter of James I and sister to Charles I.
She and her husband, the Elector Palatine are sometimes referred to as the Winter King and Queen because of their ill-judged acceptance of the throne of Bohemia and their short-lived reign as King and Queen.
Two of their sons, the Princes Rupert and Maurice of the Rhine fought tirelessly for their uncle Charles I during the English Civil War.
Gerrit van Honthorst (1594-1667) and Cornelis van Poelenburch (1592-1656) were Dutch artists active in Rome in the early 17th Century.