The Battle of Graz took place on 24–26 June 1809 between an Austrian corps commanded by Ignaz Gyulai and a French division led by Jean-Baptiste Broussier. The French were soon reinforced by a corps under Auguste Marmont. The battle is considered a French victory though Gyulai was successful in getting supplies to the Austrian garrison of Graz before the two French forces drove him away from the city. Graz, Austria is located 145 kilometers south-southwest of Vienna at the intersection of the modern A2 and A9 highways.

Auguste Frédéric Louis Viesse de Marmont was a French general and nobleman who rose to the rank of Marshal of the Empire and was awarded the title Duke of Ragusa. In the Peninsular War Marmont succeeded the disgraced André Masséna in the command of the French army in northern Spain, but lost decisively at the Battle of Salamanca as France ultimately lost the war in Spain.