Question: Where did George IV of the country where the Triumph Roadster's manufacturer is located die?

full_context: Document 1: Automotive industry in the United Kingdom: The origins of the UK automotive industry date back to the final years of the 19th century. By the 1950s the UK was the second - largest manufacturer of cars in the world (after the United States) and the largest exporter. However, in subsequent decades the industry experienced considerably lower growth than competitor nations such as France, Germany and Japan and by 2008 the UK was the 12th - largest producer of cars measured by volume. Since the early 1990s many British car marques have been acquired by foreign companies including BMW (Mini and Rolls - Royce), SAIC (MG), TATA (Jaguar and Land Rover) and Volkswagen Group (Bentley). Rights to many currently dormant marques, including Austin, Riley, Rover and Triumph, are also owned by foreign companies.
Document 2: Triumph Dolomite (1934–40): The Triumph Dolomite is a car that was produced by Triumph Motor Company from 1934 to 1940. It first appeared in 1934 as a sports car and the name was also used from 1937 on a series of sporting saloons and open cars until 1939 when the company went into receivership. A number were still sold and registered in 1940, though it is uncertain whether the receiver or new owner turned out cars from spare parts, or sold off completed cars. All except the Straight 8 featured a "waterfall" grille styled by Walter Belgrove, versions of the saloons with conventional grilles were sold as Continental models.
Document 3: Standard Ten: The Standard Ten was a model name given to several small cars produced by the British Standard Motor Company between 1906 and 1961. The name was a reference to the car's fiscal horsepower. Like other manufacturers, Standard continued to use the name to define the approximate size of their 'Ten' model long after the origins of the name had, in Britain, become inapplicable.
Document 4: Triumph Roadster: The Triumph Roadster is an automobile which was produced by Britain's Standard Motor Company from 1946 to 1949. It was first available as the Triumph 1800 Roadster (18TR) from 1946 to 1948 and then as the Triumph 2000 Roadster (TRA) from 1948 to 1949.
Document 5: Morris Light Reconnaissance Car: The Nuffield Group had been brought in to supplement production of light reconnaissance cars by Standard Motor Company (Beaverette) and Humber (Humber LAC, also known as "Humberette").
Document 6: Range Rover Sport: The Range Rover Sport is a British luxury mid-size SUV made by Land Rover. The first generation (codename: L320) started production in 2004, and was replaced by the second generation Sport (codename: L494) in 2013.
Document 7: Triumph TR2: The Triumph TR2 is a sports car produced by the Standard Motor Company in the United Kingdom between 1953 and 1955, during which time 8,636 cars were produced.
Document 8: Equestrian statue of Theodore Roosevelt: Equestrian Statue of Theodore Roosevelt is a 1939 bronze sculpture by James Earle Fraser. It is located at the American Museum of Natural History, New York City. The equestrian statue depicts Theodore Roosevelt on horseback. Standing to either side of him are an American Indian and an African.
Document 9: Lister Motor Company: The Lister Motor Company Ltd. is a British sports car manufacturer founded by Brian Lister in 1954 in Cambridge, England, which became known for its involvement in motorsport. Sold in 1986, Laurence Pearce produced variants of the Jaguar XJS before producing a bespoke sports car, the Lister Storm. In 2013, Lister Cars was acquired by Lawrence Whittaker's company Warrantywise. Production of the original sports car restarted in 2014 and ten continuation Lister Jaguar Knobblys were built to celebrate Lister’s 60th Anniversary. In 2016, the company announced the build and sale of the Lister Knobbly Stirling Moss. On 31 January 2018, the Lister LFT-666 (previously called the Lister Thunder) based on the Jaguar F-Type was announced.
Document 10: Mini: By March 2000, Rover was still suffering massive losses, and BMW decided to dispose of most of the companies. The sell - off was completed in May that year. MG and Rover went to Phoenix, a new British consortium; and Land Rover was sold to Ford Motor Company. BMW retained the Mini name and the planned new model, granting Rover temporary rights to the brand and allowing it to manufacture and sell the run - out model of the old Mini. By April 2000, the range consisted of four versions: the Mini Classic Seven, the Mini Classic Cooper, the Mini Classic Cooper Sport and -- for overseas European markets -- the Mini Knightsbridge. The last Mini (a red Cooper Sport) was built on 4 October 2000 and presented to the British Motor Industry Heritage Trust in December of that year. A total of 5,387,862 cars had been manufactured, nearly 1.6 million of which were sold in Britain, although the majority of these were sold at least 20 years before the Mini's demise, meaning that the majority of those sold had been scrapped before the end of the original Mini's production life.
Document 11: Equestrian Portrait of Charles I: The Equestrian Portrait of Charles I (also known as Charles I on Horseback) is an oil painting on canvas by Anthony van Dyck, showing Charles I on horseback. Charles I had become King of England, Scotland and Ireland in 1625 on the death of his father James I, and Van Dyck became Charles's Principal Painter in Ordinary in 1632.
Document 12: The Copper Horse: The northern end of the Long Walk is at the George IV Gateway at Windsor Castle. The Copper Horse is a statue of George III on horseback, and is said to represent George as an emperor in the Roman tradition riding without stirrups, along the lines of the Equestrian Statue of Marcus Aurelius. A comparison has also been made to the equestrian statue of Peter the Great in Saint Petersburg.
Document 13: The Horses of Helios: The Horses of Helios, also known as The Four Bronze Horses of Helios, is a bronze sculpture of four horses by Rudy Weller. It is one half of a commission installed in 1992 when the adjacent Criterion Theatre was refurbished. The other half, the "Daughters of Helios" or "Three Graces", is a sculpture of three women leaping off the building six stories above.
Document 14: Triumph TR7: The Triumph TR7 is a sports car which was manufactured from September 1974 to October 1981 by the Specialist Division (latterly the "Jaguar-Rover-Triumph" division) of British Leyland in the United Kingdom. It was initially produced at the Speke, Liverpool factory, moving to Canley, Coventry in 1978 and then finally to the Rover Solihull plant in 1980. The car was launched in the United States in January 1975, with its UK home market debut in May 1976. The UK launch was delayed at least twice because of high demand for the vehicle in the US, with final sales of new TR7s continuing into 1982.
Document 15: Regisole: The Regisole ("Sun King") was a bronze classical or Late Antique equestrian monument, highly influential during the Italian Renaissance but destroyed in 1796. It was originally erected at Ravenna, in what is now Italy, but was moved to Pavia in the Middle Ages, where it stood on a column before the cathedral, as an emblem of communal pride and Pavia's deep connection with imperial Rome.
ground_truth: Windsor Castle
sub_queries: Triumph Roadster >> manufacturer Answer: Standard Motor Company
Standard Motor Company >> country Answer: United Kingdom
George IV of United Kingdom >> place of death Answer: Windsor Castle