Throughout the centuries Piešťany was owned by several noble families; the last of them, the Erdődys, owned the area from 1720 to 1848, and the spa until 1940. The Erdődy family built the first spa buildings in 1778. They were damaged by a destructive flood in 1813. In 1820 the spa buildings were expanded and remodeled in neo-classical style and named Napoleon spa. The Erdődy family also established the Spa park in this period. In the years 1889 to 1940 the Winter family rented the spa from the Erdődys and brought it to international fame. The Winters improved spa treatment as well as accommodation and entertainment for visitors. They built several spa buildings and hotels.