John Nash (architect) have great pleasure in visiting this part of my dominions". Whether this was based on just a rumour put about by people who resented Nash's success or if there is substance behind is not known. Further London commissions for Nash followed, including the remodelling of Buckingham House to create Buckingham Palace (1825–1830), and for the Royal Mews (1822–24) and Marble Arch (1828) The arch was originally designed as a triumphal arch to stand at the entrance to Buckingham Palace. It was moved when the east wing of the palace designed by Edward Blore was built, at the request of Queen
Staszic Palace need for an Orthodox chapel, and in 1668 another Polish king, John II Casimir, transferred the chapel to the Dominican Order, who would be caretakers of the building until 1808. In 1818 the building was purchased by Stanisław Staszic, a leader of the Polish Enlightenment, who ordered its renovation. The architect in charge was Antonio Corazzi, who designed the palace in a neoclassical style. After the renovation (1820–23), Staszic transferred the building to the Society of Friends of Science, the first Polish scientific organization. On 11 May 1830 a landmark was added to the palace, as Julian Ursyn Niemcewicz unveiled