despite the emperor's disapproval. Even when Napoleon forced him to marry a Bavarian princess, the Duchess Maria Elisabeth, in 1808, Berthier managed to keep his mistress and his wife together under the same roof, a state of affairs which infuriated the emperor. On 9 March 1808, Berthier married Elisabeth who was the only daughter of Duke Wilhelm in Bavaria and Countess Palatine Maria Anna of Zweibrücken-Birkenfeld-Rappoltstein, the sister of King Maximilian I Joseph of Bavaria, and a relative of the Russian emperor through the Wittelsbach line on the Bavarian side and Prussian (Mecklenburg) side of her lineage. They had one son and two daughters : Napoléon-Alexandre, 2nd Duke and 2nd Prince of Wagram (11 September 1810 – 10 February 1887), married on 29 June 1831 to Zénaïde Françoise Clary (25 November 1812 – 27 April 1884). They had two daughters, Malcy Louise Caroline Frédérique Berthier Princess of Walgram (1832-1884), Elisabeth Alexandrine Maria Berthier Princess of Wagram (1849–1932) and a son, Louis Philippe Marie Alexandre Berthier, 3rd Prince of Wagram (1836–1911) Caroline-Joséphine, Princess of Wagram (22 August 1812 – 1905), married on 9 October 1832 to Alphonse Napoléon, Baron d'Hautpoul (29 May 1806 – 25 April 1889) Marie Anne Wilhelmine Alexandrine Elisabeth, Princess of Wagram (19 February 1816 – 23 July 1878). Born shortly after her father's death. Married on 24 June 1834 to Jules Lebrun, 3rd Duke of Plaisance (19 April 1811 – 15 January 1872) In literature Berthier is mentioned and/or appears in several of Sir Arthur Conan Doyle's Brigadier Gerard stories, including How the Brigadier Was Tempted by the Devil (1895) and in Leo Tolstoy's War and Peace. Notes References Attribution Further reading Bukhari, Emir Napoleon's Marshals Osprey Publishing, 1979, . Chandler, David Napoleon's Marshals Macmillan Pub Co, 1987, . Connelly, Owen, Blundering to Glory: Napoleon's Military Campaigns SR Books, 1999, . Elting, John R. Swords around a Throne: Napoleon's Grande Armée Weidenfeld & Nicolson, 1997, . Haythornthwaite, Philip Napoleon's Commanders (2): c. 1809–15 Osprey Publishing, 2002, . Hittle, James Donald the Military Staff: Its History and Development Military Service Publishing, 1952. Macdonell, A. G. Napoleon and His Marshals Prion, 1997, . Pawly, Ronald Napoleon's Imperial Headquarters (1): Organization and Personnel Osprey Publishing, 2004, . Pawly, Ronald Napoleon's Imperial Headquarters (2): On campaign Osprey Publishing, 2004, . Watson, S.J. By Command of the Emperor: A Life of Marshal Berthier. Ken Trotman Ltd, . Archive sources The Berthier collection