Brisson, on undertaking the post, actually thought it right to take the precaution of protesting privately, making a declaration in the presence of notaries “that he so acted by constraint only, and that he shrank from any rebellion against his king and sovereign lord.” It was, indeed, on the ground of the heredity of the monarchy and by virtue of his own proper rights that Henry IV. had ascended the throne; and M. Poirson says quite correctly, in his learned _Histoire du Regne d’Henri IV._ [t. i. p. 29, second edition, 1862], “The manifesto of Henry IV., as its very name indicates, was not a contract settled between the noblesse in camp at St. Cloud and the claimant; it was a solemn and reciprocal acknowledgment by the noblesse of Henry’s rights to the crown, and by Henry of the nation’s political, civil, and religious rights. The engagements entered into by Henry were only what were necessary to complete the guarantees given for the security of the rights of Catholics. As touching the succession to the throne, the signataries themselves say that all they do is to maintain and continue the law of the land.” There was, in 1589, an unlawful pretender to the throne of France; and that was Cardinal Charles de Bourbon, younger brother of Anthony de Bourbon, King of Navarre, and consequently uncle of Henry IV., sole representative of the elder branch. Under Henry III., the cardinal had thrown in his lot with the League; and, after the murder of Guise, Henry III. had, by way of precaution, ordered him to be arrested and detained him in confinement at Chinon, where he still was when Henry III. was in his turn murdered. On becoming king, the far-sighted Henry IV. at once bethought him of his uncle and of what he might be able to do against him. The cardinal was at Chinon, in the custody of Sieur de Chavigny, “a man of proved fidelity,” says De Thou, “but by this time old and blind.” Henry IV. wrote to Du Plessis-Mornay, appointed quite recently governor of Saumur, “bidding him, at any price,” says Madame de Mornay, “to get Cardinal de Bourbon away from Chinon, where he was, without sparing anything, even to the whole of his property, because he would incontinently set himself up for king if he could obtain his release.” Henry IV. was right. As early as the 7th of August, the Duke of Mayenne had an announcement made to the Parliament of Paris, and written notice sent to all the provincial governors, “that, in the interval until the states-general could be assembled, he urged them all to unite with him in rendering with one accord to their Catholic king, that is to say, Cardinal de Bourbon, the obedience that was due to him.” The cardinal was, in fact, proclaimed king under the name of Charles X.; and eight months afterwards, on the 5th of March, 1590, the Parliament of Paris issued a decree “recognizing Charles X. as true and lawful king of France.” Du Plessis-Mornay, ill though he was, had understood and