Kammala jumla mai zuwa: A 1813 ya tattauna yarjejeniyar kare juna tare da Austria; amma bayan da
Yaƙin Lützen (1813), Sarkin Saxony ya koma hannun Faransa a Dresden. Langenau ya yi murabus kuma ya yi yaƙi don Austria. A ranar 27 ga Yuli, 1813, Langenau ya kasance Babban Janar na Janar Janar. A Dresden, 26 ga Agusta, 1813, ya yi nasarar karɓar umarni daga Janar Janar V. Frierenberger. A Leipzig, 16 ga Oktoba, 1813, Feldm. Darektan-Lieut. Reisner ya ba da umarni ga Langerau na Cibiyar da batura na hagu, sun haɗu a wurare biyu, kuma sun yi shiru da bindigogi na abokan gaba. A ranar 18 ga Oktoba Langerau shine na farko da ya bi janyewar abokan gaba daga kwarin Wachau. Langerau ya umurci bindigogi a yaƙe-yaƙe kusa da Hochheim (a ranar 9 ga Nuwamba 1813). Ayyukansa a matsayin Janar Janar na Babban Rundunar Bohemia, a 1814, da kuma Rundunar Rhine, a 1815, a karkashin Schwarzenberg, ya sami amincewar duniya. Joseph Radetzky von Radetz ya yi aiki a ƙarƙashinsa a 1814.