Eugène de Beauharnais
The collection was a heritage from Napoleonic times through Joséphine de Beauharnais, but with new additions by the subsequent Dukes, especially Eugène de Beauharnais. In 1810, Eugène de Beauharnais bought part of the collection of Giovanni Francesco Arese, including at least one painting by Peter Paul Rubens. By 1841, the collection was largely complete.