Really beautiful! Only a doubt... Who's the baby with the blue clothes? It's impossible to be the Prince Imperial (for the year)...
I've seen this painting in an exhibition in Paris. I don't remember exactly but what I know is this : it's during a visit of Napoleon III and Eugenie somewhere in France (maybe Cherbourg or something like that).
The Emperor and the Empress were received in the "hotel particulier" (town house) of the prefect of the department (the prefect is the man with black and gold uniform, on the right, talking to the Emperor).
And we can see the prefect'wife presenting her little daughter (the baby in blue dress) to the Empress...
This painting was made for the prefect to commemorate the imperial visit...