 The royalty lived in the Schlossberg castle and from there ruled Styria, Carinthia, most of today's Slovenia, and parts of Italy (Carniola, Gorizia and Gradisca, Trieste).In the 16th century, the city's design and planning were primarily controlled by Italian Renaissance architects and artists.One of the most famous buildings representative of this style is the Landhaus, designed by Domenico dell'Allio, and used by the local rulers as a governmental headquarters.