In September of 1791, the first constitution of France was accepted, and the members of the National Assembly went home. On the first of October of 1791, the legislative assembly came together to continue the work of the National Assembly. In this new gathering of popular representatives there were many extremely revolutionary elements. The boldest among these were known as the Jacobins, after the old Jacobin cloister in which they held their political meetings. These young men (most of them belonging to the professional classes) made very violent speeches and when the newspapers carried these orations to Berlin and Vienna, the King of Prussia and the Emperor decided that they must do something to save their good brother and sister. They were very busy just then dividing the kingdom of Poland, where rival political factions had caused such a state of disorder that the country was at the mercy of anybody who wanted to take a couple of provinces. But they managed to send an army to invade France and deliver the king.