 Complete the following phrase:  In his letters, Charles-Joseph, 7th Prince of Ligne, wrote to his friend Louis Philippe, comte de Ségur while serving with the army at the 1788 Siege of Ochakov. He described a Frenchman of three ages - the chivalry of one, the grace of another, and the gayety of the present day. The Prince continued, He is as giddy as a bumblebee in the midst of the liveliest cannonading. He noted a weakness, Always French in soul, and it may be, a trifle vain. De Ligne concluded with, Amiable, beloved by all, and what one calls a charming fellow, a brave fellow, a seigneur of the good tone of the Court of France - that is what Roger Damas is. Damas served with Archduke Charles, Duke of Teschen at the 