The Congress Of Vienna
The aristocracy and nobility of those nations were unequivocal in their support of Napoleon Bonaparte's defeat and exile during the Napoleonic Wars, despite the fact that many people reading this may have mixed sentiments about it. In October 1814, they set up the Congress of Vienna to discuss what to do next. But everything had to wait because it was time to celebrate.
It was a celebration to see, according to all accounts. Vienna's population increased by a third as a result of this gathering of some of Europe's wealthiest individuals, which also attracted 90 ambassadors, their staff, and two emperors, three kings, 11 princes, and two armies.
Although it was intended to be a brief celebration, it lasted for over nine months. During that time, guests traveled throughout the city in some 300 opulent carriages provided by the Austrian emperor and attended a seemingly endless series of festivities, including dinners, jousts, and boar hunts. It was even referred to as the "biggest and most extravagant party in history" by novelist and historian David King, who must have agreed because he published a whole book about the event, Vienna, 1814.