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.
Archduke Joseph August of Austria Archduke Joseph August Viktor Klemens Maria of Austria, Prince of Hungary and Bohemia (9 August 1872 – 6 July 1962) was for a short period head of state of Hungary. He was a member of the House of Habsburg-Lorraine, the eldest son of Archduke Joseph Karl of Austria (1833–1905) and his wife Princess Clotilde of Saxe-Coburg-Gotha (1846–1927). Joseph August's grandfather had been Palatine Joseph of Hungary (1776–1847), Palatine and Viceroy of Hungary, a younger son of Emperor Leopold II.