 However, following the so-called Hat's War between Sweden and Russia in 1741-43, which Sweden again lost, a large area of eastern Finland was ceded to Russia, including Hamina and the fortified towns of Lappeenranta and Savonlinna.The focus of the country's defences then switched to a small provincial coastal town, Helsinki.However, even during Russia's rule of Hamina, the grandeur of its neoclassical architecture continued to grow; and when the town was "returned" to Finland, as all of Finland became a Grand Duchy of Russia in 1809, the refined architecture was continued further, with several buildings designed by Carl Ludvig Engel designed in the then prevailing neoclassical style.