In 1809, Napoleon issued a decree annexing Macerata as part of the French Empire. Despite orders from the French to have this decree read in all churches, Vincent refused. In a similar action, he also refused to provide the French with a list of all the men in his diocese who would be suitable for military service. In September 1808, Vincent was placed under arrest for refusing to take the oath of allegiance to the French invaders and was then exiled to Mantua.
His Feast Day is September 25.