Charles X's ministers were imprisoned in the keep of the fortress, while waiting for the Court of Peers to rule on their fate. When a crowd of enthusiastic revolutionaries demanded the heads of ministers under the walls of Vincennes, Daumesnil replied: "They only belong to the law, you will only have them with my life", and his energy was enough to calm the rioters. When it came to transferring the ministers to be remanded at the Chamber of Peers, there was fear that another attempt on their lives might be made. One of them was sick. Daumesnil, in full uniform, placed him at his side, in his carriage, and passed through the silent and threatening crowd that blocked his path. He moved towards the Luxembourg Palace, and delivered the prisoners safely to the palace commander.
