Among the paintings, the polyptych “Our Lady With Child and Saints” by Blaž Jurjev Trogiranin from 1431 is of particular value. Renaissance paintings of Italian masters of the 16th century, as well as paintings of Italian baroque masters of the 17th and 18th centuries are displayed. Modern Croatian art from the end of the 19th century and the 20th century is represented by the works of Miroslav Kraljević, Mate Celestin Medović, Edo Murtić and others. Among the drawings are those of Italian masters from the High Renaissance Period to the 19th century and a collection of architectural and sculptural drawings from the 17th century, better known as ‘the Korcula Notebook’. Of the sculptural works, mention should be made of the works of Ivan Meštrović and Fran Kršinić. Votive plaques, medals and seals, old church books and codices from the 12th to the 18th centuries, which include the “Korcula Codex” and a neumatic chant, both from the 12th century, and a rich numismatic collection ranging from Hellenism to the 20th century are also exhibited.

The liturgical vessels and relics, as well as church attire, chasubles, mantles, dalmatians and mitres from the 15th to the 19th centuries are also valuable. Other items worth mentioning are the sumptuous late Gothic bifora from the workshop of Marko Andrijić from the 15th century, the bishop’s throne from the end of the 18th century, as well as the coats of arms of 36 Korcula bishops (1300-1830) and four abbots (1876 – 1971). Numerous stone fragments of Korcula Cathedral from the 15th and the 16th centuries are exhibited in the lapidarium. Clay and ceramic vessels removed from a sunken Roman galley from the 1st century and from a Byzantine shipwreck in the 6th century are displayed in the old kitchen ambience. There is also a collection of tin and copper utensils and porcelain from the period from the 16th to the 19th century.