Solution:
Metternich described Giuseppe Mazzini as the most dangerous enemy, as he supported a democratic republic. Conservatives were frightened of this mindset. Giuseppe Mazzini founded Young Italy, and liberal nationalism was something he believed in blindly. He inspired the younger members of the society, Young Italy and Young Europe, to participate in revolutionary activities. After seeing the results and the ideology of his societies, more of these kinds of societies were established in France, Britain, Poland, and Switzerland. All of these activities made the conservatives frightened of him, so Metternich described Giuseppe Mazzini as the most dangerous enemy.