Lefebvre painted this portrait of the then still official crown prince on the verge of the Franco-Prussian War that would cost him his future throne. It was exhibited in 1874. Ex-Empress Eugénie kept it at Farnborough, it was sold with her other possessions in July 1927. It is now in the Musée national du Château de Compiègne. Some additional information (in French) can be found here.