In the 15th century, the Serbian despot Georgios Brankovic became one of the most important donors of the monastery. In 1447, he funded the construction of the new cathedral in a position somewhat southern to the original church built by St Pavlos in the 10th century. He dedicated it to his patron saint, St Georgios. Since then, the Monastery commemorates St Georgios along with the Virgin Mary, to whom it was originally dedicated. Many of the relics that are kept today in the Monastery were gifts of various Serbian rulers and nobles.