Brenier played an honorable part in the campaign of 1813. Leading the 9th Division in Marshal Michel Ney's III Corps, he was severely wounded at the Battle of Lützen in Saxony on 2 May 1813. In 1814 he became commander of the 16th military district and supervised the fortification of Lille. Afterwards he took over the command of the city of Brest, where his actions during the Hundred Days earned him a sword of honour voted him by the municipal council. Brenier became a Count, the Inspector General of the Infantry from 1816 to 1818, and the supreme commander in Corsica from 1820 to 1823. He retired in 1827 and died on 8 October 1832.