The siege of Mainz (3 January – 4 May 1814) saw an Imperial French corps under Charles Antoine Morand besieged in Mainz Fortress by an Imperial Russian corps led by Louis Alexandre Andrault de Langeron.

Despite the epidemic, Morand did not surrender the city until the news of Napoleon's abdication arrived.

Damas' division counted 169 officers and 1,748 men in the brigades of Schweitzer and Jean-Baptiste Estève de Latour.

Guilleminot's division included 187 officers and 2,438 men in the brigades of Antoine Gruyer, Jean-Marie Vergez and Annet Morio de L'Isle.

Semellé's division numbered 246 officers and 3,837 men in the brigades of Antoine Aymard and Henri-Jacques-Martin Lagarde.