In 1827 Nipce began corresponding with Louis Daguerre, a Parisian painter who was conducting similar experiments, and in 1829 the two men signed a ten-year contract of collaboration in their work. They developed a better process called physautotype, using lavender oil as a key ingredient, but Nipce died in 1833.
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Nicéphore Niépce (born Joseph Niépce; 7 March 1765 – 5 July 1833) was a French inventor, now usually credited as the inventor of photography and a pioneer in that field.
https://en.wikipedia.org/wiki/Niepce
He invented photography, by noticing, exploiting, and refining chemical reactions caused by light to produce permanent images. He began his work in 1813, and made the first negative photographic image in 1816, though the image was not permanent and faded quickly.
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Military service: French National Guard (1788-92); Revolutionary Army (1792-94) Nicphore Nipce was the first experimenter to use the centuries-old principles of the pinhole camera (or camera obscura) to project light on copper plates coated with silver chloride.
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The French government agreed to award Daguerre a yearly stipend of 6,000 Francs for the rest of his life, and to give the estate of Niépce 4,000 Francs yearly. This arrangement rankled Niépce's son, who claimed Daguerre was reaping all the benefits of his father's work.
https://en.wikipedia.org/wiki/Niepce
His contributions were largely forgotten after Daguerre perfected his daguerreotypes in 1839. The world's oldest surviving photograph is an eight-hour exposure onto a pewter plate, taken by Nipce in 1826 or 1827, and showing the view from an attic window in his home.
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Niépce was born in Chalon-sur-Saône, Saône-et-Loire, where his father was a wealthy lawyer; this caused the whole family to flee the French Revolution.
https://en.wikipedia.org/wiki/Niepce
(1765-1833) Joseph Nicphore Niepce was a French researcher who is most famous for producing the first known photograph. Born on March 7, 1765 to a moderately wealthy family, Niepce pursued a variety of careers, including teaching and military service.
http://micro.magnet.fsu.edu/optics/timeline/people/niepce.html
Nicéphore Niépce died of a stroke on 5 July 1833, financially ruined by the semi-delirious spending of Claude such that his grave in the cemetery of Saint-Loup de Varennes was financed by the municipality. The cemetery is near the family house where he had experimented and had made the world's first photographic image.
https://en.wikipedia.org/wiki/Niepce
Joseph Nicphore Niepce. Joseph Nicphore Niepce was a French researcher who is most famous for producing the first known photograph. Born on March 7, 1765 to a moderately wealthy family, Niepce pursued a variety of careers, including teaching and military service. However, around 1795 he settled on his family estate in Chalon-sur-Sane, France to concentrate of research and experimentation with his brother Claude.
http://micro.magnet.fsu.edu/optics/timeline/people/niepce.html
where was  nicéphore niépce born
Nicéphore Niépce was born in Chalon-sur-Sane, France. Nicephore Niepce was born in Chalon-sur-Sane, France.