Crkva sv. Marije Koledate (Church of St. Mary Collegiate), Kotor

The Church of Saint Mary, originally built in 1221 atop the site of a 6th-century basilica, holds significant historical and religious importance in Kotor. Notable features include its remarkable 20th-century bronze doors adorned with bas-reliefs, remnants of 16th-century frescoes attributed to Greek artists, and a striking larger-than-life crucifix. However, one of its most significant aspects is the presence of a glass coffin containing the body of Blessed Osanna of Cattaro (1493–1565).

Osanna's story is one of profound devotion and selflessness. Opting for a life of prayer, she chose to become an anchoress, secluded within a small cell attached to the church. Despite her solitude, she remained deeply connected to her faith, attending Mass through a window and offering prayers for those who sought her intercession. Following the destruction of her initial hermitage by an earthquake, Ossana relocated to a cell at Saint Paul's church and faithfully adhered to the Dominican rule for the last 52 years of her life.

Even in death, Osanna continued to be revered by the people of Kotor, who regarded her as a saint and protector of their city. Her incorrupt body was initially housed in the Church of Saint Paul until 1807 when it was transferred to the Church of Saint Mary, where it remains to this day. In 1905, the process for her beatification commenced in Kotor and was successfully completed in Rome.