The painting of St George on a white horse thrusting a spear into the dragon’s throat is located on the nave side of the north section of the triumphal arch wall; in the background, on the right, we see a small praying figure of Marjetica (Princess Sabra), while her parents, the king and queen, are watching on from castle windows.

All the figures are foregrounded; the space is rendered schematically, without depth. The architecture with sparsely rendered perspective functions as a theatrical backdrop. St George is fashionably attired: the drapery folds are soft, the edges are elegantly undulated. The oval face with almond-shaped eyes and heart-shaped lips is rendered through masterful tonal modelling; it is surrounded by neat curly hair with bright gradients.

The wall painting at Breg near Preddvor is the work of the third group of masters from the succession of the so-called Gorizia workshop, which was active in the territory of Slovenia; among their other works are the fragments in the nave of the church in nearby Tupaliče and the paintings on the façade of the Church of the Holy Cross above Selca. The workshop, which was probably based in Gorizia, was still cultivating some of the stylistic innovations of the Italian Trecento art, although its masters were also flirting with the new currents of the Bohemian International Soft Style.