The nave received its present form around the year
1520, when it was vaulted over with a stellar vault. The bosses are
round and almost all of them were decorated by a stone mason. In the main
transverse rib two bosses are decorated with figures: one with the head
of St. John the Baptist, the other with the Baptism of Christ, with
ducks swimming on the river.
The other bosses are decorated with rosettes of varying sizes, with
stylized vine leaves, a stylized lily, a windmill and oak leaves. The
ribbed arches and the carved ornamentation are the work of Master HR,
who worked in the Upper Carniola area and among other works also built
the presbyteries of the parish church in Skofja Loka and of the
succursal church in Spodnja Besnica near Kranj. Because of the increased
height, the nave became more spacious and airy and demanded more light.
Thus a late Gothic window was cut into the south wall of the nave, and
in the process some of the Gothic frescos of the Ascension were
destroyed and the rest probably painted over for the first time.