Visitation of Mary Church was already recorded on Rožnik Hill in a 1526 document, stating that it had to provide a copper chalice and three pounds of hellers for the war effort. This church was razed in 1740, and a new church was built in 1746 according to plans by Candido Zulliani (1712–1769) and consecrated by Bishop Ernest Attems (1742–1757) in 1747.
The church was damaged by artillery fire during the Napoleonic siege of Ljubljana, and after its 1814 renovation it was given a Neoclassical facade. Management of the church was taken over by the Franciscans in 1826, and in 1836 it was transferred to the order as a chapel of ease. New altars were installed in the church in 1895.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.