St. Justina is a patron saint of Padua. After St. Mark, she is also a second patroness of Venice. Her feast day is October 7 and coincided with the end of the grape harvest and the time for settling agricultural contracts.

She was devoted to religion from her earliest years and took the vow of perpetual virginity. When she was brought before Maximian the prefect, she remained firm against all attacks. The prefect caused her to be slain with the sword.