1867 deaths

Jean-Baptiste Fresez (1800–1867) was Luxembourg's most important 19th-century painter. He is remembered above all for his almost photographic images of the City of Luxembourg.

Alfred-Armand-Louis-Marie Velpeau (18 May 1795 – 24 August 1867) was a French anatomist and surgeon.

Antoine Joseph Jobert de Lamballe (17 December 1799 – 19 April 1867) was a French surgeon. He was born at Matignon, studied medicine at Paris, and in 1830 became surgeon at the Hôpital Saint-Louis. He was elected to the Academy of Medicine in 1840 and to the Academy of Sciences in 1856.
Jobert was a brilliant and resourceful operator, best known for his masterly use of autoplastie, the repair of diseased parts by healthy neighboring tissue, and especially for the operation which he styled élitroplastie, an autoplastic cure of vaginal fistula. He wrote:

Traité théorique et pratique des maladies chirurgicales du canal intestinal (1829)
Etudes sur le système nerveux (1838)
Traité de chirurgie plastique (1849)
De la réunion en chirurgie (1864)

Godard Alexander Gerrit Philip Mollinger (8 March 1836, Utrecht - 14 September 1867, Utrecht) was a Dutch landscape and genre painter. Although he signed his paintings "A. Mollinger", some sources refer to him as Gerrit Mollinger.

Louis Adolphe Bonard (27 March 1805 – 31 March 1867) was a French admiral who served in the Mediterranean and then for many years in the Pacific.
He was governor of French Guiana from 1853 to 1855, and governor of Cochinchina (southern Vietnam) from 1861 to 1863.

Benoît Fourneyron (31 October 1802 – 31 July 1867) was a French engineer, born in Saint-Étienne, Loire. Fourneyron made significant contributions to the development of water turbines.
Benoît Fourneyron was educated at the École Nationale Supérieure des Mines de Saint-Étienne, a nearby engineering school that had recently opened. After he graduated in 1816, he spent the next few years in mines and ironworks.
Around this time, a number of French engineers—including some of Fourneyron's former teachers—were starting to apply the mathematical techniques of modern science to the ancient mechanism called the waterwheel.
For centuries, waterwheels had been used to convert the energy of streams into mechanical power, mostly for milling grain. But the new machines of the Industrial Revolution required more power, and by the 1820s there was enormous interest in making waterwheels more efficient.

Jean-Victor Poncelet (French pronunciation: [ʒɑ̃ viktɔʁ pɔ̃slɛ]; 1 July 1788 – 22 December 1867) was a French engineer and mathematician who served most notably as the Commanding General of the École Polytechnique. He is considered a reviver of projective geometry, and his work Traité des propriétés projectives des figures is considered the first definitive text on the subject since Gérard Desargues' work on it in the 17th century. He later wrote an introduction to it: Applications d'analyse et de géométrie.As a mathematician, his most notable work was in projective geometry, although an early collaboration with Charles Julien Brianchon provided a significant contribution to Feuerbach's theorem. He also made discoveries about projective harmonic conjugates; relating these to the poles and polar lines associated with conic sections. He developed the concept of parallel lines meeting at a point at infinity and defined the circular points at infinity that are on every circle of the plane. These discoveries led to the principle of duality, and the principle of continuity and also aided in the development of complex numbers.As a military engineer, he served in Napoleon's campaign against the Russian Empire in 1812, in which he was captured and held prisoner until 1814. Later, he served as a professor of mechanics at the École d'application in his home town of Metz, during which time he published Introduction à la mécanique industrielle, a work he is famous for, and improved the design of turbines and water wheels. In 1837, a tenured 'Chaire de mécanique physique et expérimentale' was specially created for him at the Sorbonne (the University of Paris). In 1848, he became the commanding general of his alma mater, the École Polytechnique. He is honoured by having his name listed among notable French engineers and scientists displayed around the first stage of the Eiffel tower.

Jacques Raymond Brascassat (August 30, 1804 – February 28, 1867) was a famous French painter noted for his landscapes, and in particular his animal paintings.

Théophile-Jules Pelouze (also known as Jules Pelouze, Théophile Pelouze, Theo Pelouze, or T. J. Pelouze, pronounced [pəluz]; 26 February 1807 – 31 May 1867) was a French chemist.