The 14th-century chapel situated on Wzgórze Zamkowe is one of the most important locations in Lublin. The reason for this are the Russian and Byzantine paintings placed inside to decorate its interiors upon an order issued by King Władysław Jagiełło in the 1st half of the 15th century. The paintings depicting religious themes in the spirit of the Orthodox Christianity adorn the walls of the Roman Catholic church, which creates a unique symbol of the coexistence of Eastern- and Western-European cultures. Among the images of saints and Bible scenes, we can see frescos depicting Władysław Jagiełło himself. These are the only images of the king created in his lifetime.