Question: Mathilde Ludendorff was the wife of the German General who was victorious at which two battles?

full_context: Document 1: Hindenburg Programme: The Hindenburg Programme of August 1916 is the name given to the armaments and economic policy begun in late 1916 by the Third "Oberste Heeresleitung" ("OHL", the German General Staff), Field Marshal Paul von Hindenburg and General Erich Ludendorff. The two were appointed after the sacking of General Erich von Falkenhayn on 28 August 1916 and intended to double German industrial production, greatly to increase the output of munitions and weapons.
Document 2: Erich Ludendorff: Erich Friedrich Wilhelm Ludendorff (9 April 1865 – 20 December 1937) was a German general, the victor of the Battle of Liège and the Battle of Tannenberg. From August 1916, his appointment as Quartermaster general ("Erster Generalquartiermeister") made him the leader (along with Paul von Hindenburg) of the German war efforts during World War I until his resignation in October 1918, just before the end of hostilities.
Document 3: Mathilde Ludendorff: Mathilde Friederike Karoline Ludendorff (born Mathilde Spiess; 4 October 1877 in Wiesbaden – 24 June 1966 in Tutzing) was a German psychiatrist. Her third husband was General Erich Ludendorff. She was a leading figure in the Völkisch movement known for her esoteric and conspiratorial ideas. Together with Ludendorff, she founded the
Document 4: Karlfried Graf Dürckheim: Karl Friedrich Alfred Heinrich Ferdinand Maria Graf Eckbrecht von Dürckheim-Montmartin (24 October 1896 – 28 December 1988) was a German diplomat, psychotherapist and Zen Master. A veteran of World War I, he was introduced to Zen Buddhism early in life. After obtaining a doctorate in psychology, he became an avid supporter of the Nazi Party. Following World War II he was imprisoned in Japan which transformed him spiritually. Upon returning to Germany he became a leading proponent of the Western esoteric spiritual tradition, synthesizing teachings from Christian Mysticism, Depth Psychology and Zen Buddhism.
Document 5: Battle of Tannenberg: The Battle of Tannenberg was fought between Russia and Germany from 26–30 August 1914, during the first month of World War I. The battle resulted in the almost complete destruction of the Russian Second Army and the suicide of its commanding general, Alexander Samsonov. A series of follow-up battles (First Masurian Lakes) destroyed most of the First Army as well and kept the Russians off balance until the spring of 1915. The battle is particularly notable for fast rail movements by the Germans, enabling them to concentrate against each of the two Russian armies in turn, and also for the failure of the Russians to encode their radio messages. It brought considerable prestige to Field Marshal Paul von Hindenburg and his rising staff-officer Erich Ludendorff.
Document 6: Magda Goebbels: Johanna Maria Magdalena "Magda" Goebbels (née Ritschel; 11 November 1901 – 1 May 1945) was the wife of Nazi Germany's Propaganda Minister Joseph Goebbels. A prominent member of the Nazi Party, she was a close ally, companion and political supporter of Adolf Hitler. Some historians refer to her as the unofficial "First Lady" of Nazi Germany, while others give that "title" to Emmy Göring.
Document 7: Helga Zepp-LaRouche: Helga Zepp-LaRouche (born August 25, 1948, Trier) is a German political activist, wife of American political activist Lyndon LaRouche, and founder of the LaRouche movement's Schiller Institute and the German "Bürgerrechtsbewegung Solidarität" party ("BüSo") (Civil Rights Movement Solidarity).
Document 8: Schlieffen Plan: The Schlieffen Plan (German: "Schlieffen-Plan" , ] ) was the name given after World War I to the thinking behind the German invasion of France and Belgium on 4 August 1914. Field Marshal Alfred von Schlieffen, the Chief of the Imperial Army German General Staff from 1891 to 1906, devised a deployment plan for a war-winning offensive, in a one-front war against the French Third Republic from 1905–06. After the war, the German official historians of the "Reichsarchiv" and other writers, described the plan as a blueprint for victory. German historians claimed that the plan had been ruined by "Generaloberst" (Colonel-General) Helmuth von Moltke the Younger, the Commander-in-Chief of the German army after Schlieffen retired in 1906, who was dismissed after the First Battle of the Marne (5–12 September 1914).
Document 9: Baroness Mary Vetsera: Baroness Marie Alexandrine von Vetsera (19 March 1871 – 30 January 1889) was a member of Austrian "second society" (new nobility) and one of Crown Prince Rudolf of Austria's mistresses. Vetsera and Rudolf were found dead, an apparent murder suicide, at his hunting lodge, Mayerling (see Mayerling Incident).
Document 10: Marie-Louise von Franz: Marie-Louise von Franz (4 January 1915 – 17 February 1998) was a Swiss Jungian psychologist and scholar, renowned for her psychological interpretations of fairy tales and of alchemical manuscripts.
Document 11: Frieda Lawrence: Frieda Lawrence (August 11, 1879 – August 11, 1956), born Frieda Freiin von Richthofen, was a German literary figure mainly known for her marriage to the British novelist D. H. Lawrence. She was a distant relation of Manfred von Richthofen, the "Red Baron".
Document 12: Alfred von Schlieffen: Alfred Graf von Schlieffen, mostly called Count Schlieffen (] ; 28 February 1833 – 4 January 1913) was a German field marshal and strategist who served as Chief of the Imperial German General Staff from 1891 to 1906. His name lived on in the 1905–06 'Schlieffen Plan', then "Aufmarsch I", a deployment plan and operational guide for a decisive initial offensive operation/campaign in a one-front war against the French Third Republic.
Document 13: Erich von Falkenhayn: General Erich Georg Anton von Falkenhayn (11 September 1861 – 8 April 1922) was the Chief of the German General Staff during the First World War from September 1914 until 29 August 1916. He was removed in the late summer of 1916 after the failure at the battle of Verdun, the opening of the Allied offensive on the Somme, the Brusilov Offensive and the entry of Romania into the war. He was later given important field commands in Romania and Syria. His reputation as a war leader was attacked in Germany during and after the war, especially by the faction which supported Hindenburg. Falkenhayn held that Germany could not win the war by a decisive battle but would have to reach a compromise peace; his enemies said he lacked the resolve necessary to win a decisive victory. Falkenhayn's relations with the Chancellor Bethmann-Hollweg were troubled and undercut Falkenhayn's plans.
Document 14: Gizella Lutz: Ferenc Szálasiné (née Gizella Lutz or "Lucz"; 21 October 1906 – 1992) was the longtime companion and, for a brief time, wife, of Ferenc Szálasi who served as Leader of the Hungarian Nation and "de facto" Prime Minister of Hungary at the end of the Second World War. They were married on 29 April 1945, on the wedding day of Adolf Hitler and Eva Braun. She was captured by the United States Army on 3 July 1945 and transferred to Hungary. Her husband was executed on 12 March 1946. She was sentenced to twelve years imprisonment on 3 December 1953. She was released in 1958.
Document 15: Erich Raeder: Erich Raeder (24 April 1876 – 6 November 1960) was a naval leader in Germany who played a major role in the naval history of World War II. Raeder attained the highest possible naval rank—that of Grand Admiral — in 1939, becoming the first person to hold that rank since Alfred von Tirpitz. Raeder led the "Kriegsmarine" for the first half of the war; he resigned in 1943 and was replaced by Karl Dönitz. He was sentenced to life in prison at the Nuremberg Trials, but was released early due to failing health.
ground_truth: Battle of Liège and the Battle of Tannenberg