On his death, Turner left the National Gallery two paintings – Dido building Carthage and Sun rising through Vapour. He made the gift in his will on condition that the works were hung between two pictures by Claude, which he named as 'The Seaport' (Seaport with the Embarkation of the Queen of Sheba) and 'The Mill' (Landscape with the Marriage of Isaac and Rebecca). This exhibition brings together other closely related works by Turner and Claude. Many of these paintings share the same theme, giving visitors a chance to fully appreciate the enormous influence of Claude's mastery of light and landscape on Turner – from his formative years until the end of his life.