Question: Where did George IV of the country the company Virgin Galactic is part of is from die?

full_context: Document 1: Vertex (company): Originally the back office service function inside UK utility company United Utilities, Vertex was spun out as a separate company in 1996. In 2007, United Utilities sold Vertex to a consortium of investors (Oak Hill Capital, GenNx360, Knox Lawrence International) for £217m.
Document 2: 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 3: New Mexico Spaceport Authority: The state of New Mexico has privatized the operations of Spaceport America; the spaceport will be operated by Virgin Galactic, a component of the Virgin Group of global companies operated by Sir Richard Branson. While the Spaceport Authority will exercise public-sector oversight, Virgin Galactic will be the "anchor tenant" of the spaceport.
Document 4: Israel: The Israeli Space Agency coordinates all Israeli space research programs with scientific and commercial goals. In 2012 Israel was ranked ninth in the world by the Futron's Space Competitiveness Index. Israel is one of only seven countries that both build their own satellites and launch their own launchers. The Shavit is a space launch vehicle produced by Israel to launch small satellites into low earth orbit. It was first launched in 1988, making Israel the eighth nation to have a space launch capability. Shavit rockets are launched from the spaceport at the Palmachim Airbase by the Israeli Space Agency. Since 1988 Israel Aerospace Industries have indigenously designed and built at least 13 commercial, research and spy satellites. Some of Israel's satellites are ranked among the world's most advanced space systems. In 2003, Ilan Ramon became Israel's first astronaut, serving as payload specialist of STS-107, the fatal mission of the Space Shuttle Columbia.
Document 5: Virgin Holidays Cruises: Virgin Holidays Cruises is a company owned by Virgin Group and is part of Virgin Holidays, headquartered in Crawley. The company specialises in package deals with cruises provided by other cruise lines.
Document 6: 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 7: Virgin Drinks: After thirteen years, the brand started to massively decline as rival Coca-Cola had made exclusive distribution deals in big stores and restaurants. This led to Virgin only being sold in select supermarkets and local stores. Virgin Group decided it could not compete with cola rivals. In 2007, Virgin Drinks sold over the rights of Virgin Cola to a company called Silver Spring Soft Drinks. Virgin Vodka was discontinued when Virgin Drinks failed to find a buyer. Virgin Drinks were made defunct in 2007.
Document 8: 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.
Document 9: Magnetic Scrolls: In 1991, Virgin Interactive released "The Magnetic Scrolls Collection Vol 1", containing new versions of "The Guild of Thieves", "Corruption" and "Fish!" that took advantage of the Magnetic Windows engine. A second collection, containing their remaining games, was planned but never completed. As a consequence of the dying text adventure market, Magnetic Scrolls ceased publishing in 1992. They were acquired by MicroProse later that year. A number of Magnetic Scrolls' staff went on to help develop a 3D role-playing video game entitled "", which was released on the PC to lukewarm reviews, but MicroProse did not capitalise on the Magnetic Scrolls name beyond that. In the late 1990s, Ken Gordon registered the "magneticscrolls.com" domain, which now redirects to the "Strand Games" website.
Document 10: 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 11: Virgin Games: Virgin Games is a company that provides online gambling services, predominantly in the United Kingdom, that licences the brand from Sir Richard Branson's Virgin Enterprises.
Document 12: Virgin Galactic: Virgin Galactic is a British spaceflight company within the Virgin Group. It is developing commercial spacecraft and aims to provide suborbital spaceflights to space tourists and suborbital launches for space science missions. Virgin Galactic plans to provide orbital human spaceflights as well. SpaceShipTwo, Virgin Galactic's suborbital spacecraft, is air launched from beneath a carrier airplane known as White Knight Two.
Document 13: VMS Eve: VMS "Eve" is the first, and so far only, White Knight Two, built by Scaled Composites for Virgin Galactic. The "VMS" prefix stands for "Virgin Mothership".
Document 14: 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 15: Very (online retailer): Very (also known as Very.co.uk) is a British online retailer with headquarters in Speke, Liverpool. The brand was launched in the UK in July 2009 as part of Shop Direct. Very had formerly been known as Littlewoods Direct.
ground_truth: Windsor Castle
sub_queries: What company is Virgin Galactic part of? Answer: Virgin Group
Virgin Group >> country Answer: United Kingdom
George IV of United Kingdom >> place of death Answer: Windsor Castle