Question: In which country did Crown Prince Friedrich Ludwig die?

full_context: Document 1: Kassel-Wilhelmshöhe station: Kassel-Wilhelmshöhe is a railway station in the city of Kassel, in the German state of Hesse. It is the city's most important railway station, as it is connected to the Hanover-Würzburg high-speed rail line, with InterCityExpress services calling at the station.
Document 2: Victoria, Princess Royal: With the death of King Frederick William IV on 2 January 1861, his brother, who had acted as regent since 1858, ascended the throne as King William I. Frederick was then the new crown prince of Prussia but his situation at court did not change much: his father refused to increase his allowance, and Crown Princess Victoria continued to contribute significantly to the family budget with her dowry and allowance. In a letter to the Baron von Stockmar, Prince Albert commented on the situation:
Document 3: Muhtar Kent: Muhtar Kent was born in 1952 in New York City, where his father, Necdet Kent, was the consul-general of Turkey. After completing high school at Tarsus American College in Mersin, Turkey in 1971, Muhtar Kent went to the UK to study at the University of Hull. Subsequently, he earned an MBA degree at Cass Business School, London.
Document 4: Railway stations in Coburg: There are six railway stations in the town of Coburg in Bavaria, southern Germany. These include: two passenger stations, three halts and one goods station.
Document 5: Crown Prince Friedrich Ludwig: Frederick Louis of Württemberg (Stuttgart, 14 December 1698 - Ludwigsburg, 23 November 1731) was heir to the duchy of Württemberg.
Document 6: Mesrob II Mutafyan of Constantinople: Mesrob Mutafyan born Minas Mutafian graduated from the American High School in Kornwestheim near Stuttgart, Germany. From 1974 to 1979, he studied philosophy and sociology in Memphis, Tennessee, United States.
Document 7: Prince Frederick Adolf, Duke of Östergötland: Prince Frederick Adolf of Sweden (; 18 July 1750 in Drottningholm – 12 December 1803 in Montpellier, France) was a Swedish Prince, youngest son of King Adolf Frederick of Sweden and Louisa Ulrika of Prussia, a sister of Frederick the Great, King of Prussia. He was given the title Duke of Östergötland.
Document 8: Ferdinand von Malaisé: Ferdinand Malaisé, after 1862 Ritter Ferdinand von Malaisé (23 February 1806, Linz on the Rhine, Germany - 29 June 1892, Munich, Germany). Knight ofthe Order of St. Joseph of Tuscany (III Class), the Iron Crown of Austria (II Class with Laurels) and the Bavarian Order of Merit (III Class), , Professor of Mathematics, and tutor to Ludwig III, the last King of Bavaria.
Document 9: Yusuf Çetin: A native of Turkey's Dargeçit district, known to its Assyrian/Syriac native population as Kerburan, parts of which are located in southeastern Anatolia's Mardin Province, Yusuf Çetin expressed interest in Syriac Church doctrine at an early age. In the course of completing his secondary education, he also learned the Syriac language and subsequently attended his home province's Mor Gabriel Monastery, Syriac Orthodoxy's oldest surviving monastic institution. Having demonstrated exceptional acuity for learning and spiritual instruction, he was ordained a priest in 1971, at the unusually early age of 17, and shortly thereafter was entrusted with instructing theology to the next generation of devout youth. By 1977 he was consecrated with the title of "spiritual" and received an invitation from Patriarch Moran Mor Ignatius Zakka I Iwas to come to Syria, thus enabling his attendance at Damascus' St. Mor Efrem School of Theology. Receiving a diploma in the aftermath of three years' intensive study, he ultimately received appointment as dean of the school.
Document 10: Mushtaq Minhas: Mushtaq Minhas studied at Forman Christian College, in Lahore, from where he gained a Bachelor of Arts degree. He was also the vice president of the students' union. Mushtaq Minhas received Master of Arts degree in Mass Communication from University of Punjab, Lahore.
Document 11: Kornwestheim station: Kornwestheim station is located in the Ludwigsburg district of Kornwestheim in the German state of Baden-Württemberg. It is located on the Franconia Railway () and is a station on the network of the Stuttgart S-Bahn. It is near the junction of the Untertürkheim–Kornwestheim line ("Schusterbahn") freight bypass. Kornwestheim passenger station was the site of a Deutsche Bahn car train loading facility until December 2007.
Document 12: Louis IV, Holy Roman Emperor: But then Louis' sudden death avoided a longer civil war. Louis died in October 1347 from a stroke suffered during a bear-hunt in Puch near Fürstenfeldbruck. He is buried in the Frauenkirche in Munich. The sons of Louis supported Günther von Schwarzburg as new rival king to Charles but finally joined the Luxemburg party after Günther's early death in 1349 and divided the Wittelsbach possessions amongst themselves again. In continuance of the conflict of the House of Wittelsbach with the House of Luxemburg, the Wittelsbach family returned to power in the Holy Roman Empire in 1400 with King Rupert of Germany, a great-grandnephew of Louis.
Document 13: Krupunder station: Krupunder station is on the Hamburg-Altona–Kiel line and is a railway station served by the city trains of the Hamburg S-Bahn. The railway station is located in the municipality Halstenbek in the district of Pinneberg, in Schleswig-Holstein, Germany, directly at the border to Hamburg.
Document 14: Bretten station: Bretten station was opened on 1 October 1853 as part of the construction of Western Railway from Stuttgart to Bruchsal. In the late 1870s, the Kraichgau Railway was opened from Karlsruhe to Heilbronn, creating a railway junction. At the same time the station was moved from near the town centre to its present location at the junction to the west of the town centre.
Document 15: Mansour bin Mutaib Al Saud: Mansour bin Mutaib received all his higher education degrees from George Washington University: a bachelor of arts degree in business administration in 1976; a master of arts degree in 1979 and a PhD in public administration in 1986. His thesis has the title of ‘Improvement in the productivity of public sector in the Kingdom”.
ground_truth: Germany
sub_queries: Crown Prince Friedrich Ludwig >> place of death Answer: Ludwigsburg
Ludwigsburg >> contains administrative territorial entity Answer: Kornwestheim
Kornwestheim >> country Answer: Germany