Who is the French composer who, in 1899, wrote a well-known solo piano piece for Prince Edmond de Polignac?
Concerto for Two Pianos and Orchestra (Poulenc):  Poulenc composed the concerto for the Princess Edmond de Polignac, an American-born arts patron to whom many early 20th-century masterpieces are dedicated, including Stravinsky’s "Renard", Ravel’s "Pavane pour une infante défunte", Kurt Weill’s Second Symphony, and Satie’s "Socrates". Pavane pour une infante défunte: Pavane pour une infante défunte ("Pavane for a Dead Infanta") is a well-known piece written for solo piano by the French composer Maurice Ravel in 1899 when he was studying composition at the Conservatoire de Paris under Gabriel Fauré.
Maurice Ravel