Heading from the 18th century into the 19th century, Europe was at a crossroads. Events such as the French Revolution and the Napoleonic Wars shook the continent to its foundation. In art and architecture there were also great changes. The Baroque and the Rococo were cast aside for Neoclassicism which took its inspiration from the ancient Greeks and Romans.
One of the galleries of the Cleveland Museum of Art has a selection of artwork from the late 1700s and early 1800s.
Prominently displayed in the gallery are five paintings by the French artist, Charles Meynier. They were done between 1798 and 1800 and represent Apollo and the Muses. They were acquired by the museum in 2003, and experts spent five years meticulously cleaning and restoring the canvasses. During much of that time the entire museum had been closed for renovation and expansion. When the main floor of the original building was reopened in 2008, the paintings were debuted with much fanfare.
I uploaded this picture of what the entire painting with the additions looks like. It is in the museum of the Palace of Versailles.
It is indeed a portrait of a Spanish prince, Don Luis de Borbón, but it was done by a German painter by the name of Anton Rafael Mengs. Mengs worked at the court of King Charles III in Madrid. He is considered a precursor of neoclassicism.