St. Mark’s Cathedral is probably the most important building in the Korcula Old Town. It is built in Gothic-Renaissance style, completed in the 15th century at the place of other church from 13th century. It was built by local masters and craftsman of stone masonry, very well known in renaissance and baroque Dubrovnik and Venice.
Most famous among them was stonemason Marko Andijic who completed the cathedral’s tower and cupola (1481) as well as elegant ciborium above the main altar. Cathedral’s facade is decorated with the truly beautiful fluted rose and various relief and statues (photos), while the main door – portal is framed by statues of Adam and Eve and figures of lions. Inside the Cathedral there are two Tintoretto’s paintings.
This is the largest Church in the city, oriented east-west. Here on the highest point on the peninsula and central square was a smaller Church most likely consecrated to the Mother of God.
https://www.korculainfo.com/st-marks-cathedral/