1811 births

Auguste Victor Laurent Casimir-Perier (20 August 1811, in Paris – 6 June 1876) was a French diplomat and political leader. He was the son of Prime Minister Casimir Pierre Perier and the father of President Jean Casimir-Perier.
He entered the diplomatic service, being attached successively to the London, Brussels and St Petersburg embassies and in 1843 became minister plenipotentiary at Hanover.In 1846 he resigned from the service to enter the legislature as deputy for the département of Seine, a constituency which he exchanged for another one in the département of Aube after the Revolution of 1848.On the establishment of the Second Empire he retired temporarily from public life, and devoted himself to economic questions of which he published a series of works, notably Les Finances et la politique (1863), dealing with the interaction of political institutions and finance. He contested Grenoble unsuccessfully in 1863 against the imperial candidate, Casimir Royer; and failed again for Aube in 1869.In 1871 he was returned by three départements to the National Assembly, and elected to sit for Aube. He joined the Centre gauche parliamentary group. He was minister of the interior for a few months from 11 October 1871 to 6 February 1872, and his retirement deprived Thiers of one of the strongest elements in his cabinet. He also joined the short-lived ministry of May 1873 (18 to 25 May). He consistently opposed all efforts in the direction of a monarchical restoration, but on the definite constitution of the republic became a senator for life, declining Mac-Mahon's invitation to form the first cabinet under the new constitution. He died in Paris.

Émilie de Villeneuve (9 March 1811 – 2 October 1854) was a French Catholic nun and the founder of the Sisters of Our Lady of the Immaculate Conception of Castres.After she died her cause of canonization was opened. She was beatified in 2009 after a miracle attributed to her intercession was ratified. She was approved for sainthood in 2014 and was canonized by Pope Francis on 17 May 2015.

Auguste Bravais (French pronunciation: [oɡyst bʁavɛ]; 23 August 1811, Annonay, Ardèche – 30 March 1863, Le Chesnay, France) was a French physicist known for his work in crystallography, the conception of Bravais lattices, and the formulation of Bravais law. Bravais also studied magnetism, the northern lights, meteorology, geobotany, phyllotaxis, astronomy, statistics and hydrography.
He studied at the Collège Stanislas in Paris before joining the École Polytechnique in 1829, where he was a classmate of groundbreaking mathematician Évariste Galois, whom Bravais actually beat in a scholastic mathematics competition. Towards the end of his studies he became a naval officer, and sailed on the Finistere in 1832 as well as the Loiret afterwards. He took part in hydrographic work along the Algerian Coast. He participated in the Recherche expedition and helped the Lilloise in Spitzbergen and Lapland.
Bravais taught a course in applied mathematics for astronomy in the Faculty of Sciences in Lyon, starting in 1840. He succeeded Victor Le Chevalier in the Chair of Physics at the Ecole Polytechnique from 1845 until 1856 when he was replaced by Henri Hureau de Sénarmont. In 1844 he published a paper on the statistical concept of correlation, and arrived at a definition of the correlation coefficient before Karl Pearson. He is, however, best remembered for his work on Bravais lattices, particularly his 1848 discovery that there are 14 unique lattices in three-dimensional crystalline systems, correcting the previous scheme, with 15 lattices, conceived by Frankenheim three years before.
Bravais published a memoir about crystallography in 1847. A co-founder of the Société météorologique de France, he joined the French Academy of Sciences in 1854. Bravais also worked on the theory of observational errors, a field in which he is especially known for his 1846 paper "Mathematical analysis on the probability of errors of a point".
The mountain Bravaisberget, in Svalbard, is named after Bravais.

Jean-Baptiste Alphonse Baudin Victor (23 October 1811 Nantua - 3 December 1851 Paris) was a French physician and deputy to the assembly in 1849 famous for having been killed on a barricade.

Enrico Cialdini, Duca di Gaeta (10 August 1811 – 8 September 1892) was an Italian soldier, politician and diplomat.

Peter Julian Eymard (French: Pierre-Julien Eymard [pjɛʁ ʒyljɛ̃ ɛjmɑʁ]; 4 February 1811 – 1 August 1868) was a French Catholic priest and founder of two religious institutes: the Congregation of the Blessed Sacrament for men and the Servants of the Blessed Sacrament for women.

Count Henri Delaborde (1811–1899) was a French art critic and historical painter, born in Rennes, son of Count Henri François Delaborde.

Joseph Lambert Massart (19 July 1811 – 13 February 1892) was a Belgian violinist who has been credited with the origination of the systematic vibrato. He compiled The Art of Working at Kreutzer's Etudes, a supplement that contains 412 fingerings and bowings taken from his time studying with Rodolphe Kreutzer. He was an excellent String quartet player who gave many delightful chamber concerts, having also played Beethoven's Kreutzer Sonata in A minor with Franz Liszt on 23 May 1843.

Jean Auguste Barre (25 September 1811 – 5 February 1896) was a French sculptor and medalist. Born in Paris, he was trained by his father Jean-Jacques Barre (1793–1855), a medalist. In 1879, he succeeded his brother Jean-Auguste Barre as the 19th Chief engraver of the Monnaie de Paris, though he held the position for only one year.Barre studied at the École nationale supérieure des Beaux-Arts in Paris under Jean-Pierre Cortot, and he is mainly known as a portrait sculptor.
Exhibiting at the French Salon from 1831 to 1886, his first showings were of medallions and medals. Barre is known to be one of the first sculptors to make miniatures of famous contemporaries, such as Napoleon III, Queen Victoria, dancers Marie Taglioni and Emma Livry, and Susan B. Anthony. His bronze works are on display in such places as the Louvre and the Cleveland Art Museum.
One of his stone works is found in the cemetery of Père Lachaise Cemetery, where he did a bust for the tomb of his friend Alfred de Musset.
He died in Paris in 1896.

Friedrich Franz Karl Hecker (September 28, 1811 – March 24, 1881) was a German lawyer, politician and revolutionary. He was one of the most popular speakers and agitators of the 1848 Revolution. After moving to the United States, he served as a brigade commander in the Union Army during the American Civil War.