The whole building follows the pattern of French Cathedral architecture. The building masters are unknown; however, it is commonly attributed to Jacobus Parisiensis, Fra Giacomo of Paris, who was the confessor of Duke Albrecht II. The portal follows a French pattern, rare for Austria. The tympanum is divided by circle impacts into three fields, whereby in the middle field, Christ on a branch cross is displayed. On the left, is Mary with Mary Magdalene and other female figures; on the right, John the Evangelist, Saint Longinus the soldier, and other male figures. The outermost male and female figures could represent Duke Albrecht II and his wife Johanna of Pfirt, particularly since the male figure seems to wear a Duke hat. The figures are very elegant and fine-linked represented: probably a French influence, and, at the same time, an important style characteristic of the Minoritenwerkstatt, which date back until approximately 1360.