question: What is the date of death of the founder of Boulton And Watt?
context: [["Jacob Broughton Nelson", ["Jacob Broughton Nelson( born July 1898, date of death unknown) has been proclaimed the founder of Phi Kappa secondary school fraternity."]], ["Jabez Carter Hornblower", ["Jabez Carter Hornblower (21 May 1744 \u2013 14 July 1814) was an English pioneer of steam power, and the son of Jonathan Hornblower.", "Jabez Carter Hornblower was born in Broseley, Shropshire, England on 21 May 1744 and was the eldest child of steam engineer Jonathan and Ann Carter Hornblower.", "He gained his engineering skills working for his father building Newcomen steam engines in Cornwall.", "He later worked for Boulton and Watt building the new Watt steam engines designed and patented by James Watt.", "By 1790, he had set up a business in London with financial backing from well-to-do currier John Maberly, where he designed a new steam engine based on the patented designs of Isaac Mainwaring.", "However, in 1796, Hornblower and Maberly were sued by Boulton and Watt, who claimed one of Watt's patents \u2013 concerning the condenser, had been infringed.", "After a long trial, judgement in 1799 was in favour of Boulton and Watt and brought about the collapse of Hornblower and Maberly's business.", "In 1803, Hornblower was imprisoned in the King's Bench debtors prison but on his release in 1805 he managed to secure some work in mainland Europe building engines until his return to England in 1813.", "He died on 11 July 1814 and was buried in the Bunhill Fields burial ground in London.", "He had married twice, once in Cornwall to Mary John, with whom he had four children and, on her death, to Ann Hanbury of Bridgnorth, Shropshire with whom he had another four children."]], ["Lord Arthur Clinton", ["Lord Arthur Pelham- Clinton( 23 June 1840 \u2013 18 June 1870), known as Lord Arthur Clinton, was an English aristocrat and Liberal Party politician.", "A member of parliament( MP) for three years, he was notorious for involvement in the homosexual scandal and trial of Boulton and Park."]], ["Theodred II (Bishop of Elmham)", ["Theodred II was a medieval Bishop of Elmham.", "The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997."]], ["Etan Boritzer", ["Etan Boritzer( born 1950) is an American writer of children \u2019s literature who is best known for his book\" What is God?\" first published in 1989.", "His best selling\" What is?\" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.", "Boritzer gained national critical acclaim after\" What is God?\" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.", "The other current books in the\" What is?\" series include", "What is Love?,", "What is Death?,", "What is Beautiful?,", "What is Funny?,", "What is Right?,", "What is Peace?,", "What is Money?,", "What is Dreaming?,", "What is a Friend?,", "What is True?,", "What is a Family?,", "What is a Feeling?\"", "The series is now also translated into 15 languages.", "Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.", "His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.", "Boritzer now lives in Venice, California and maintains his publishing office there also.", "He has helped numerous other authors to get published through\" How to Get Your Book Published!\" programs.", "Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.", "He is also recognized nationally as an erudite speaker on\" The Teachings of the Buddha.\""]], ["Matthew Boulton", ["Matthew Boulton (3 September 1728 \u2013 17 August 1809) was an English manufacturer and business partner of Scottish engineer James Watt.", "In the final quarter of the 18th century, the partnership installed hundreds of Boulton & Watt steam engines, which were a great advance on the state of the art, making possible the mechanisation of factories and mills.", "Boulton applied modern techniques to the minting of coins, striking millions of pieces for Britain and other countries, and supplying the Royal Mint with up-to-date equipment.", "Born in Birmingham, he was the son of a Birmingham manufacturer of small metal products who died when Boulton was 31.", "By then Boulton had managed the business for several years, and thereafter expanded it considerably, consolidating operations at the Soho Manufactory, built by him near Birmingham.", "At Soho, he adopted the latest techniques, branching into silver plate, ormolu and other decorative arts.", "He became associated with James Watt when Watt's business partner, John Roebuck, was unable to pay a debt to Boulton, who accepted Roebuck's share of Watt's patent as settlement.", "He then successfully lobbied Parliament to extend Watt's patent for an additional 17 years, enabling the firm to market Watt's steam engine.", "The firm installed hundreds of Boulton & Watt steam engines in Britain and abroad, initially in mines and then in factories.", "Boulton was a key member of the Lunar Society, a group of Birmingham-area men prominent in the arts, sciences, and theology.", "Members included Watt, Erasmus Darwin, Josiah Wedgwood and Joseph Priestley.", "The Society met each month near the full moon.", "Members of the Society have been given credit for developing concepts and techniques in science, agriculture, manufacturing, mining, and transport that laid the groundwork for the Industrial Revolution.", "Boulton founded the Soho Mint, to which he soon adapted steam power.", "He sought to improve the poor state of Britain's coinage, and after several years of effort obtained a contract in 1797 to produce the first British copper coinage in a quarter century.", "His \"cartwheel\" pieces were well-designed and difficult to counterfeit, and included the first striking of the large copper British penny, which continued to be coined until decimalisation in 1971.", "He retired in 1800, though continuing to run his mint, and died in 1809.", "His image appears alongside his partner James Watt on the Bank of England's current Series F \u00a350 note."]], ["Thomas Scott (diver)", ["Thomas Scott( 1907- date of death unknown) was an English diver."]], ["Boulton and Watt", ["Boulton & Watt was an early British engineering and manufacturing firm in the business of designing and making marine and stationary steam engines.", "Founded in the English West Midlands around Birmingham in 1775 as a partnership between the English manufacturer Matthew Boulton and the Scottish engineer James Watt, the firm had a major role in the Industrial Revolution and grew to be a major producer of steam engines in the 19th century."]], ["James Watt", ["James Watt( 30 January 1736 \u2013 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1776, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world.", "While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines.", "He realised that contemporary engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder.", "Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.", "Eventually he adapted his engine to produce rotary motion, greatly broadening its use beyond pumping water.", "Watt attempted to commercialise his invention, but experienced great financial difficulties until he entered a partnership with Matthew Boulton in 1775.", "The new firm of Boulton and Watt was eventually highly successful and Watt became a wealthy man.", "In his retirement, Watt continued to develop new inventions though none was as significant as his steam engine work.", "He developed the concept of horsepower, and the SI unit of power, the watt, was named after him."]], ["Tim League", ["Tim League is an American entrepreneur and film producer based in Austin, Texas.", "He is the founder of the Alamo Drafthouse Cinema chain and the founder of the film distribution company Drafthouse Films, where League has produced films including\" The ABCs of Death\"..", "He is also the co-founder of genre film festival Fantastic Fest, the co-founder of entertainment merchandise entity Mondo, and the co-founder of film distribution and production company Neon."]]]
supporting_facts: [["Boulton and Watt", 1], ["Matthew Boulton", 0]]
evidences: [["Boulton & Watt", "founded by", "Matthew Boulton"], ["Matthew Boulton", "date of death", "17 August 1809"]]
answer: 17 August 1809