Meantime Aerssens had been going about flaunting letters in everybody's face from the Duc de Bouillon insisting on the necessity of his return! The fact in itself would have been sufficient to warrant his removal, for the Duke was just taking up arms against his sovereign. Unless the States meant to interfere officially and directly in the civil war about to break out in France, they could hardly send a minister to the government on recommendation of the leader of the rebellion. It had, however, become impossible to remove him without an explosion. Barneveld, who, said du Maurier, "knew the man to his finger nails," had been reluctant to "break the ice," and wished for official notice in the matter from the Queen. Maurice protected the troublesome diplomatist. "'Tis incredible," said the French ambassador "how covertly Prince Maurice is carrying himself, contrary to his wont, in this whole affair. I don't know whether it is from simple jealousy to Barneveld, or if there is some mystery concealed below the surface." Du Maurier had accordingly been obliged to ask his government for distinct and official instructions. "He holds to his place," said he, "by so slight and fragile a root as not to require two hands to pluck him up, the little finger being enough. There is no doubt that he has been in concert with those who are making use of him to re-establish their credit with the States, and to embark Prince Maurice contrary to his preceding custom in a cabal with them." Thus a question of removing an obnoxious diplomatist could hardly be graver, for it was believed that he was doing his best to involve the military chief of his own state in a game of treason and rebellion against the government to which he was accredited. It was not the first nor likely to be the last of Bouillon's deadly intrigues. But the man who had been privy to Biron's conspiracy against the crown and life of his sovereign was hardly a safe ally for his brother-in-law, the straightforward stadholder. The instructions desired by du Maurier and by Barneveld had, as we have seen, at last arrived. The French ambassador thus fortified appeared before the Assembly of the States-General and officially demanded the recall of Aerssens. In a letter addressed privately and confidentially to their Mightinesses, he said, "If in spite of us you throw him at our feet, we shall fling him back at your head."