The Presidential Palace (Polish: Pałac Prezydencki) is the official residence of the Polish head of state and president alongside the Belweder Palace, located in Warsaw, Poland. Originally constructed in 1643 as an aristocratic mansion, it was rebuilt and remodelled several times over the course of its existence by notable architects. The current neoclassical palace was completed in 1818.
Throughout its history, the palace was a venue for important historical events in Polish, European, and world history. In 1791, the facility hosted authors and advocates of the Constitution of 3 May 1791, the first modern European constitution. In 1818, the palace began its ongoing career as a governmental structure when it became the seat of the Polish Viceroy (namiestnik) of the autonomous Congress Poland, Józef Zajączek.