Mezue ahịrịokwu na-esonụ: Ka bụ onye ọchịagha nke ndị agha, Marulaz hụrụ onwe ya na-eduzi ndị agha nke anọ nke Marshal André Masséna na mmalite nke Agha nke Ise nke Coalition. Ya 2,765-nwoke iwu gụnyere 3rd, 14th, 19th, na 23rd Chasseurs à cheval Regiments, na mgbakwunye na Baden Light Dragoon na Hesse-Darmstadt Chevauléger Regiments. N'ụtụtụ nke 21 Eprel 1809, ndị Chasseurs nke 23 weghaara àkwà mmiri dị n'Osimiri Isar na Moosburg n'ọgbaghara dị egwu. Ndị agha ịnyịnya nke Marulaz gafere ngwa ngwa n'akụkụ ọwụwa anyanwụ ma tụgharịa n'ebe ugwu ọwụwa anyanwụ gaa Landshut ebe ndị Austria nke Johann von Hiller nọ na-eguzogide. N'ụbọchị ahụ, Napoleon meriri Hiller na
Agha nke Landshut. Eze ukwu ahụ nwere olileanya ijide ndị Austria n'ọgụ ha ga-eji mma e ji achụ nta ọgụ lụọ n'etiti ndị agha ya na ndị agha Masséna.