 Nyorai kupfuurira kweiyi ndima - Muna 1812, mukati mekupinda kweFrance muRussia, akaitwa général de brigade uye mukuru wevashandi kuDavout. Akakuvadzwa nechando, Lejeune akasiya basa rake panguva yokudzokera shure kubva kuRussia uye akasungwa pamurayiro waNapoleon. Akasunungurwa muna March 1813, Lejeune akabva atumirwa kumaruwa eIllyrian, asati adzokera kuhondo pasi pemirairo ya marshal Oudinot, achiva mukuru wevashandi vake. Munguva yokurwisa Saxony, Lejeune akanga aripo paHondo yeLutzen 1813, kuyambuka Rwizi Spree uye paBautzen. Akaitwa mukuru mukuru weLégion dhonneur uye mukuru mukuru weOrder of Maximilian weBavaria. Muhondo yeHoyersverda, apo mauto aBülow akatsvaira mauto e12 akaumbwa munzvimbo yakaenzana pamupata, Lejeune ari panjodzi yekubatwa akaenda mumitsara yevavengi nebato rimwe, vatasvi vemabhiza vaGeneral Wolf uye zvombo zvitanhatu zve12 pounder. Nokudaro akaparadza pfuti yose yePrussian ndokuponesa mukuru wehondo Oudinot neuto rake. Akakuvadzwa kanoverengeka uye pakupedzisira paHanau, akabvumirwa kusiya uto munaNovember 1813 mushure memakore anopfuura makumi maviri ebasa. Pashure pokunge abva muchiuto, akazvipira kupenda. 