In 1815 the Congress of Vienna assigned the town along with the Rhine's left bank as far upstream as Bingerbrück to the Kingdom of Prussia. In 1816, new districts ("Kreise") were established and Boppard was assigned to the Sankt Goar district, which was dissolved in 1969. At the time of the Vormärz, political tensions arose in Boppard, too. These flared up in particular around the long-time mayor, Matthias Jacobs, who as the representative of the long established, Catholic middle and lower classes was always trying to prevail against the town's wealthy, liberal upper class. Only in the Year of Revolution (1848) did his opponents manage to drive him out of office.