NEGOTIATING WITH PRINCES
King arrested not only Merargue, but also the private secretary to the Spanish ambassador, a man named Bruneau. Both were convicted of conspiracy. Merargue was executed, and the King handed over the private secretary to his own ambassador, saying that he would be glad to see Bruneau sent across the frontier, though he himself reserved the right to demand satisfaction from the Spanish King for Bruneau's misdemeanour.
Immunity a Function of Sovereignty.Now if princes had the right to proceed against foreign envoys at their courts, the latter would never feel themselves secure, because then it would be easy to get rid of any of them on flimsy pretexts, and the precedent once set up in a good case would surely be followed in many cases where nothing but idle suspicion could be brought against the envoy in question. This indeed would be the end of all diplomacy. Of course it is true that a minister who breaks faith cannot expect others to keep faith with him, especially if he is engaged upon conspiracies or any of those practices against the prince and safety of the realm of which I have spoken. But even in such a case the wise prince will not break the law of nations, which should always be respected. He will rather use his good offices at the court whence the erring envoy came in order to have him withdrawn. At the same time it is always permissible to place a watch upon a faithless85
