Messiah was court architect to Leopold II of Belgium,[1] but his most famous work was the Villa Ephrussi, completed in 1912.
At this southern French villa, Messiah successfully synthesized the eclectic collections and ideas of Baroness Béatrice Ephrussi de Rothschild into a coherent neoclassical whole.
Messiah also built the more grandiose Villa Masséna on the Promenade des Anglais in Nice.
This villa was built for the prince Victor Masséna fr, whose family had gained title and wealth under the French emperor Napoléon.
Despite its historicism, the villa included an up-to-date porte-cochere, where visitors could enter and leave automobiles without being exposed to the elements.