The Franco-Italian army led by Eugène de Beauharnais was defreated by an Austrian army commanded by a member of what house?
Archduke John of Austria Archduke John of Austria (German: "Erzherzog Johann Baptist Joseph Fabian Sebastian von Österreich" ; 20 January 1782 – 11 May 1859), a member of the House of Habsburg-Lorraine, was an Austrian field marshal and Imperial regent ("Reichsverweser") of the short-lived German Empire during the Revolutions of 1848.
Joséphine de Beauharnais Joséphine de Beauharnais (] ; "née" Tascher de la Pagerie; 23 June 1763 – 29 May 1814) was the first wife of Napoleon I, and thus the first Empress of the French (commonly called Empress Joséphine or just Joséphine).