Count Francesco Algarotti was an Italian polymath, philosopher, poet, essayist, anglophile, art critic and art collector. He was a man of broad knowledge, an expert in Newtonianism, architecture and opera. He was a friend of Frederick the Great and leading authors of his times: Voltaire, Jean-Baptiste de Boyer, Marquis d'Argens, Pierre-Louis de Maupertuis and the atheist Julien Offray de La Mettrie. Lord Chesterfield, Thomas Gray, George Lyttelton, Thomas Hollis, Metastasio, Benedict XIV and Heinrich von Brühl were among his correspondents.
Portrait by Jean-Étienne Liotard (1745), Rijksmuseum, on parchment
Nandl Baldauf, la belle chocolatière (1743/44). The pastel by Liotard was sold in 1745 by Algarotti to Dresden.
The interior of the Pantheon (Rome) by Giovanni Paolo Pannini, ordered by and belonging to the art collection of Algarotti
Gathering on Sanssouci in the Marble Hall, with Frederick II. (the Great) of Prussia, Voltaire, d'Argens, La Mettrie, James Keith, George Keith, Friedrich Rudolf von Rothenburg, Christoph Ludwig von Stille, and Algarotti. The painting was lost in 1945.
François-Marie Arouet, known by his nom de plume M. de Voltaire, was a French Enlightenment writer, philosopher (philosophe), satirist, and historian. Famous for his wit and his criticism of Christianity and of slavery, Voltaire was an advocate of freedom of speech, freedom of religion, and separation of church and state.
Portrait c. 1720s, the Musée Carnavalet
Voltaire was imprisoned in the Bastille from 16 May 1717 to 15 April 1718 in a windowless cell with ten-foot-thick walls.
In the frontispiece to Voltaire's book on Newton's philosophy, Émilie du Châtelet appears as Voltaire's muse, reflecting Newton's heavenly insights down to Voltaire.
Pastel by Maurice Quentin de La Tour, 1735