Neoclassical architecture in Poland was centered on Warsaw under the reign of Stanisà Âaw August Poniatowski, while the modern concept of a single capital city was to some extent inapplicable in the decentralized PolishâÂÂLithuanian Commonwealth. Classicism came to Poland in the 18th century as the result of French infiltrations into the Polish milieu. The best-known architects and artists who worked in Poland were Dominik Merlini, Jan Chrystian Kamsetzer, Szymon Bogumià  Zug, Stanisà Âaw Zawadzki, Efraim Szreger, Antonio Corazzi, Jakub Kubicki, Hilary Szpilowski, Christian Piotr Aigner, Wawrzyniec Gucewicz, Bonifacy Witkowski and Danish Bertel Thorvaldsen.
The first stage, called the Stanislavian style, followed by an almost complete inhibition and a period known as the Congress Kingdom classicism. The palladian patterns were independently interpreted by Szymon Bogumià  Zug, who followed an influence of radical French classicism. A palladian by influence was also Piotr Aigner - architect of the façade of St. Anne's Church, Warsaw (1786âÂÂ1788) and St. Alexander Church (1818âÂÂ1826). Palladian ideas were implemented in a popular type of a palace with a pillared portico.
The most famous buildings of the Stanislavian period include the Royal Castle, Warsaw, rebuilt by Dominik Merlini and Jan Christian Kamsetzer, Palace on the Water, Królikarnia and the palace in Jabà Âonna. Kamsetzer erected the Amphitheatre in the Royal Baths Park and the Warsaw palaces of the Raczyà Âskis and Tyszkiewiczs as well as the palace in Iskierniki. Among the most notable works by Szymon Bogumià  Zug is a palace in Natolin and Holy Trinity Church and gardens: Solec, Powàzki, Mokotów and Arcadia near Nieborów.
From the period of the Congress Kingdom are Koniecpolski Palace and the St. Alexander's Church, Warsaw, the Temple of the Sibyl in Puà Âawy, rebuilding the à Âaà Âcut Castle. The leading figure in the Congress Kingdom was Antonio Corrazzi. Corazzi created the complex of Bank Square in Warsaw, the Palace of the Ministry of Revenues and Treasury, the building of the Staszic Palace, Mostowski Palace and designed the Grand Theatre. Belvedere and Pawà Âowice were created by Jakub Kubicki, while Lubostroà  Palace and Dobrzyca Palace by Stanisà Âaw Zawadzki. The notable town halls in à Âowicz, Pà Âock, Bà Âonie, Konin and Aleksandrów à Âódzki are dating back the first half of the nineteenth century.