Editing Isaac Newton (section)

=== Death ===
[[File:PSM V69 D480 Death mask of isaac newton.png|alt=Isaac Newton's death mask|thumb|upright|Death mask of Newton, photographed {{circa|1906}}]]
Newton died in his sleep in London on 20 March 1727 ([[Old Style and New Style dates|NS]] 31 March 1727).{{efn|name=OSNS}} He was given a ceremonial funeral, attended by nobles, scientists, and philosophers, and was buried in [[Westminster Abbey]] among kings and queens. He was the first scientist to be buried in the abbey.<ref>{{London Gazette |issue=6569 |date=1 April 1727 |page=7 }}</ref> [[Voltaire]] may have been present at his funeral.<ref>Dobre and Nyden suggest that there is no clear evidence that Voltaire was present; see p. 89 of {{Cite book |last1=Dobre |first1=Mihnea |title=Cartesian Empiricism |last2=Nyden |first2=Tammy |publisher=Springer |year=2013 |isbn=978-94-007-7690-6}}</ref> A bachelor, he had divested much of his estate to relatives during his last years, and died [[intestacy|intestate]].<ref name="Newton, Isaac (1642–1727)" /> His papers went to [[John Conduitt]] and [[Catherine Barton]].<ref name="Mann">{{Cite magazine |last=Mann |first=Adam |date=14 May 2014 |title=The Strange, Secret History of Isaac Newton's Papers |url=https://www.wired.com/2014/05/newton-papers-q-and-a/ |url-access=limited |url-status=live |archive-url=https://web.archive.org/web/20170911221912/https://www.wired.com/2014/05/newton-papers-q-and-a/ |archive-date=11 September 2017 |access-date=25 April 2016 |magazine=Wired}}</ref>

Shortly after his death, a plaster [[death mask]] was moulded of Newton. It was used by [[Flemings|Flemish]] sculptor [[John Michael Rysbrack]] in making a sculpture of Newton.<ref>{{Cite web |title=Newton's Death Mask |url=https://huntington.org/verso/newtons-death-mask |access-date=7 August 2023 |website=The Huntington |date=2 August 2011 |first1=John |last1=Vining |archive-date=7 August 2023 |archive-url=https://web.archive.org/web/20230807122527/https://huntington.org/verso/newtons-death-mask |url-status=live }}</ref> It is now held by the [[Royal Society]].<ref>{{Cite web |title=Death mask of Isaac Newton |url=https://pictures.royalsociety.org/image-rs-8492 |access-date=7 August 2023 |website=Royal Society Picture Library |archive-date=7 August 2023 |archive-url=https://web.archive.org/web/20230807122526/https://pictures.royalsociety.org/image-rs-8492 |url-status=live }}</ref>

Newton's hair was posthumously examined and found to contain [[mercury (element)|mercury]], probably resulting from his alchemical pursuits. [[Mercury poisoning]] could explain Newton's eccentricity in late life.<ref name="Newton, Isaac (1642–1727)" />