On the second floor of the Palace of Versailles, Joseph was planning the tasks for the next few days—this time, numerous royal families and political figures from various countries came to celebrate Louis XVI's birthday, which was essentially a major European political and diplomatic gathering. Thus, he must seize the opportunity to finagle and maneuver, seeking favorable international political situations for France.
He had just welcomed the Spanish Crown Prince Carlos Antonio earlier that morning, who would later become Charles IV. According to the schedule, the Russian Crown Prince, the Crown Prince of Sardinia, and the Prince of Poland would also arrive consecutively tomorrow.