 The architect in charge was Antonio Corazzi, who redesigned the palace in neoclassical style.After the renovation (1820–23), Staszic donated the building to the Society of Friends of Science, the first Polish learned society dedicated to Science, founded in 1800.On 11 May 1830 the diplomat and polymath, Julian Ursyn Niemcewicz, unveiled Bertel Thorvaldsen's monument to Nicolaus Copernicus in front of the palace.