Louis-Alexandre Berthier (20 November 1753 – 1 June 1815), 1st Prince of Wagram, Sovereign Prince of Neuchâtel, was a Marshal of the Empire doubling as Minister of War and chief of staff to Napoleon. Born into a military family, he served in the French Army and survived suspicion of monarchism during the Reign of Terror, before a rapid rise in the ranks during the French Revolutionary Wars. Although a key supporter of the coup against the Directory that gave Napoleon supreme power, and present for his greatest victories, Berthier strongly opposed the progressive stretching of lines of communication during the Russian campaign. Allowed to retire by the restored Bourbon regime, he died of unnatural causes shortly before the Battle of Waterloo. Berthier's reputation as a superb operational organiser remains strong among current historians. - this is my second largest selling book and my last copy.