Kammala jumla mai zuwa: Jacquinot ya sami ci gaba ga janar na brigade a ranar 10 ga Maris, 1809. Ya sami umarnin brigade na sojan doki a cikin rukunin sojan doki na Montbrun a cikin III Corps na Marshal Louis-Nicolas Davout. A ranar 16 ga Afrilu yana da sojoji 1,797 a karkashin umurninsa a cikin 1st, 2nd da 12th Chasseurs à Cheval Regiments. A ranar 20 ga Afrilu, Napoleon ya kafa Marshal Jean Lannes wani rukunin wucin gadi wanda ya kunshi brigade na Jacquinot, da rundunonin soji biyu na III Corps da kuma rundunonin cuirassier biyu. A cikin
Yaƙin Abensberg Lannes's corps ya kori hagu na hagu na Austrian kuma ya yi hasara na 2,700 da aka kashe da kuma rauni da 4,000 da aka kama a kan abokan gaba. Brigade na Jacquinot ya yi yaƙi a yakin Raab a ranar 14 ga Yuni a ƙarƙashin umurnin Montbrun. A wannan lokacin, ya hada da 7th Hussars a maimakon 12th Chasseurs. A lokacin yakin, ƙungiyoyin Montbrun da Emmanuel Grouchy sun kori sojojin dakarun Austrian na hagu. Har yanzu yana cikin rukunin Montbrun, Jacquinot ya jagoranci brigade mai karfi 1,219 a yakin Wagram a ranar 5 ga watan Yuli inda ya zama wani ɓangare na dakarun dakarun dama a karkashin umarnin Davout. A rana ta biyu, sojojin doki na Davout sun sami rinjaye duk da sa hannun sojojin doki na Austrian da Archduke Charles, Duke na Teschen ya jagoranci.