The trial of Marillac had roused the spirit and indignation even of those nobles who had previously respected, and bowed to, the minister of the royal choice. Richelieu not only threatened their order with the scaffold, but his measures of administration were directed to deprive them of their ancient privileges, and means of wealth and domination. One of these was the right of governors of provinces to raise the revenue within their jurisdiction, and to employ or divert no small portion of it to their use. Richelieu, to remedy this, transferred the office of collecting the revenue to new officers, called the _Elect_. He tried this in Languedoc, then governed by the Duc de Montmorenci, a noble of the first rank, whose example, consequently, would have weight, and who had always proved himself obedient and loyal. Moved, however, by his private wrongs, as well as that of his order, he now joined the party of the nobles and the king's brother, Gaston, Duke of Orleans. That weak prince, after forming an alliance with the Duke of Lorraine, had raised an army. Richelieu lost not a moment in despatching a force which reduced Lorraine, and humbled its hitherto independent duke almost to the rank of a subject. Gaston then marched his army to Languedoc and joined Montmorenci. The Marechal de Breze, Richelieu's brother-in-law, led the loyal troops against them, defeated Gaston at Castelnaudari, and took Montmorenci prisoner. This noble had been the friend and supporter of Richelieu, who even called him his son; yet the cardinal's cruel policy determined that he should die. There was difficulty in proving before the judges that he had actually borne arms against the king. "The smoke and dust," said St. Reuil, the witness, "rendered it impossible to recognize any combatant distinctly. But when I saw one advance alone, and cut his way through five ranks of gens-d'armes, I knew that it must be Montmorenci." This gallant descendant of five constables of France perished on the scaffold at Toulouse. Richelieu deemed the example necessary to strike terror into the nobility. And he immediately took advantage of that terror, by removing all the governors of provinces, and replacing them throughout with officers personally attached to his interests. Having thus made, as it were, a clear stage for the fulfilment of his great political schemes, Richelieu turned his exertions to his original plan of humbling the House of Austria, and extending the territories of France at its expense. He formed an alliance with the great Gustavus Adolphus, who then victoriously supported the cause of religious liberty in Germany. Richelieu drew more advantage from the death than from the victories of his ally; since, as the price of his renewing his alliance with the Swedes, he acquired the possession of Philipsburg, and opened the way toward completing that darling project of France and every French statesman, the acquisition of the Rhine as a frontier.