The Grenadiers a Cheval of the Imperial Guard, were the shock troops of the guard, who were committed in battle as a final reserve at a crucial moment to turn the tide to victory for the French. Charging at Marengo where they were badly bloodied by the Austrians in their first battle, they again charged decisively at Austerlitz and Eylau, and bore the brunt of the fighting from 1813, when they were expanded to two regiments. Of the regiments of the Guard, the Grenadiers a Cheval has not been widely studied or been the subject of indepth research. The book brings together much of what is known about the Grenadiers from the regiments archive held in France and contemporary iconography to chart in detail the regiments history and uniform in minute detail. Using primary archival material held in France, this work presents the first indepth study on this well known but little researched regiment.