Kammala jumla mai zuwa: Har yanzu janar janar ne, Marulaz ya sami kansa yana jagorantar rundunar sojan doki ta Marshal André Masséna ta IV Corps a farkon Yakin na Biyar. Rundunarsa ta mutum 2,765 ta hada da 3rd, 14th, 19th, da 23rd Chasseurs à cheval Regiments, ban da Baden Light Dragoon da Hesse-Darmstadt Chevauléger Regiments. A safiyar ranar 21 ga Afrilu, 1809, 23rd Chasseurs sun kama gadar da ke kan Kogin Isar a Moosburg a cikin wani juyin mulki mai ban mamaki. Rundunar sojan doki na Marulaz ta haye zuwa gabar gabas kuma ta juya zuwa arewa maso gabas zuwa Landshut inda Johann von Hiller na Austrians ke yin tsayayya. A wannan rana, Napoleon ya ci Hiller a cikin
Yaƙin Landshut. Sarkin sarakuna ya yi fatan kama Austrians a cikin wani harin da aka yi tsakanin sojojinsa da Masséna.