Count Francesco Algarotti (11 December 1712 – 3 May 1764) was an Italian polymath, philosopher, poet, essayist, anglophile, art critic and art collector. He was "one of the first Esprits cavaliers of the age," a man of broad knowledge, an expert in Newtonianism, architecture and music and a friend of most of the 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