The most beautiful Renaissance square in Istria, one in San Vincenti, probably would not have been so vivid that the northern part does not close the magnificent castle. Svetvinčenat is, admittedly as a settlement, mentioned in 983 The charter of Otto II. In the 13th century castle Svetvinčenat already exists, but it is difficult to say for sure, was he present at the same site. Given that such facilities are usually built on the same site, probably in San Vincenti, while they ruled Aquileia Patriarchs and the Counts of Gorizia, the older castle was situated on the place as it today. Modern, renaissance look castle gets after the building works were completed in 1485th. Venetian family Grimani di San Luca in 1560th received Svetvincenat as dowry and they will predominate it the next few centuries.

According to legend, in the year of 1632nd in the castle there were conducted proceedings against Mary Radoslavić on charges of witchcraft. Given the gravity of the charges and methods of interrogation, Mary was not able to defend itself and she in torment admitted the charge, after which was burned at the stake in the courtyard of the castle. Tradition says that the real reason for her accusations is that she did not accepted an affair with one Grimani.