The Presidential Palace (in Polish, Pałac Prezydencki; also known as Pałac Koniecpolskich, Lubomirskich, Radziwiłłów, and Pałac Namiestnikowski) in Warsaw, Poland, is the elegant classicist latest version of a building that has stood on the Krakowskie Przedmieście site since 1643.Since July 1994, the palace has been the official seat of the President of the Republic of Poland.