Answer:
The statement is true. At the Congress of Viena, the leaders of the European powers adopted the principles of legitimacy and territorial compensation.
Step-by-step explanation:
The Congress of Vienna was a conference between ambassadors of the great European powers that took place in the Austrian capital between September 1814 and June 1815, whose intention was to redesign the political map of the European continent after the defeat of Napoleonic France the previous spring, applying the principle of territorial compensation to give back lands to their former owners. This congress also intended to restore the thrones of the royal families defeated by the troops of Napoleon (like the restoration of the Bourbons), applying at this time the principle of legitimacy.
The terms of peace were established with the signing of the Treaty of Paris (May 30, 1814), establishing the indemnities to be paid by France to the winning countries. Even after the return of Emperor Napoleon I from exile, having resumed the power of France in March 1815, discussions continued. The Final Act of Congress was signed nine days before Napoleon's final defeat at the Battle of Waterloo on June 18, 1815.