Continuous population and specific urbanization as a heritage of ancient urbanism caused the development of Zadar at in the Middle Ages. Zadar is a planned city with the distinction of the ancient orthogonal layout of street directions within which later emerging early Christian and medieval sacral objects. In the ancient core of the city, on the ancient forum, were built the cathedral complex and the church of St. Donatus, monastery and the church of St. Mary and monastery and church of St. Krševan. Other churches as church of St. Dimitrius, church of St. Nicholas, and the church of St. Mary the Great were probably romanesque but they didn't survive. In this thesis, therefore, will be given an overview of Zadar's romanesque sacral architecture, as well as residential architecture together with sculpture, painting and goldsmith art to gain insights into the development of medieval art in Zadar from the other half of XI. until the beginning of XIV. century.