Justus of Trieste was a Christian martyr who lived in the city of Trieste during the late Roman period. Known for his charitable activities, he was brought to trial under Roman law after being accused of Christianity by his fellow citizens. Because he refused to offer sacrifices to Roman deities, he was convicted of sacrilege and sentenced to death. Local tradition states that he was executed by being thrown from a boat into the Gulf of Trieste.
Life and death

Following his execution, a priest named Sebastian reportedly discovered the martyr's body washed ashore, despite weights intended to keep it submerged. He was buried near the coastline, possibly at the site of an ancient basilica. During the Middle Ages, his remains were moved to a chapel near the church of Mary Mother of God. This relocation eventually led the cathedral to be known as the Cathedral of Saint Justus.
Veneration and legacy
He serves as the patron saint of Trieste and its diocese, as well as several locations including Albona, San Giusto Canavese, and Misilmeri. His feast day is observed on 2 November, though liturgical reasons sometimes move the celebration to 3 November. Artistic depictions of the saint can be found in the Trieste cathedral, including a 12th-century mosaic and Romanesque statuary.
