This church is among the oldest in Piran and as early as the 13th century, it was a meeting place for Piran's dignitaries. According to some sources, the church had first been built as a synagogue. The stone staircase behind the main altar leads to the attic formerly belonging to the Brotherhood of a Happy Last Hour. The Jewish Square was built based on the Venetian Ghetto. One of the three atriums once had a large underwater fountain which gathered rain water from the nearby roofs. Today a large, eight-sided plate of white stone stands in its place, along with the four smaller, pierced plates through which the water poured into the fountain. It was all made by the famous sculptor of Piran, Janez Lenassi.