In regard to the charge that he had accused Prince Maurice of aspiring to the sovereignty of the country, he had much to say. He had never brought such accusation in public or private. He had reason to believe however—he had indeed convincing proofs—that many people, especially those belonging to the Contra-Remonstrant party, cherished such schemes. He had never sought to cast suspicion on the Prince himself on account of those schemes. On the contrary, he had not even formally opposed them. What he wished had always been that such projects should be discussed formally, legally, and above board. After the lamentable murder of the late Prince he had himself recommended to the authorities of some of the cities that the transaction for bestowing the sovereignty of Holland upon William, interrupted by his death, "should be completed in favour of Prince Maurice in despite of the Spaniard." Recently he had requested Grotius to look up the documents deposited in Rotterdam belonging to this affair, in order that they might be consulted.
He was asked whether according to Buzenval, the former French ambassador, Prince Maurice had not declared he would rather fling himself from the top of the Hague tower than accept the sovereignty. Barneveld replied that the Prince according to the same authority had added "under the conditions which had been imposed upon his father;" a clause which considerably modified the self-denying statement. It was desirable therefore to search the acts for the limitations annexed to the sovereignty.
Three years long there had been indications from various sources that a party wished to change the form of government. He had not heard nor ever intimated that the Prince suggested such intrigues. In anonymous pamphlets and common street and tavern conversations the Contra-Remonstrants were described by those of their own persuasion as "Prince's Beggars" and the like. He had received from foreign countries information worthy of attention, that it was the design of the Contra-Remonstrants to raise the Prince to the sovereignty. He had therefore in 1616 brought the matter before the nobles and cities in a communication setting forth to the best of his recollection that under these religious disputes something else was intended. He had desired ripe conclusions on the matter, such as should most conduce to the service of the country. This had been in good faith both to the Prince and the Provinces, in order that, should a change in the government be thought desirable, proper and peaceful means might be employed to bring it about. He had never had any other intention than to sound the inclinations of those with whom he spoke, and he had many times since that period, by word of mouth and in writing, so lately as the month of April last assured the Prince that he had ever been his sincere and faithful servant and meant to remain so to the end of his life, desiring therefore that he would explain to him his wishes and intentions.
Subsequently he had publicly proposed in full Assembly of Holland that the States should ripely deliberate and roundly declare if they were discontented with the form of government, and if so, what change they would desire. He had assured their Mightinesses that they might rely upon him to assist in carrying out their intentions whatever they might be. He had inferred however from the Prince's intimations, when he had broached the subject to him in 1617, that he was not inclined towards these supposed projects, and had heard that opinion distinctly expressed from the mouth of Count William.
That the Contra-Remonstrants secretly entertained these schemes, he had been advised from many quarters, at home and abroad. In the year 1618 he had received information to that effect from France. Certain confidential counsellors of the Prince had been with him recently to confer on the subject. He had told them that, if his Excellency chose to speak to him in regard to it, would listen to his reasoning about it, both as regarded the interests of the country and the Prince himself, and then should desire him to propose and advocate it before the Assembly, he would do so with earnestness, zeal, and affection. He had desired however that, in case the attempt failed, the Prince would allow him to be relieved from service and to leave the country. What he wished from the bottom of his heart was that his Excellency would plainly discover to him the exact nature of his sentiments in regard to the business.
He fully admitted receiving a secret letter from Ambassador Langerac, apprising him that a man of quality in France had information of the intention of the Contra-Remonstrants throughout the Provinces, should they come into power, to raise Prince Maurice to the sovereignty. He had communicated on the subject with Grotius and other deputies in order that, if this should prove to be the general inclination, the affair might be handled according to law, without confusion or disorder. This, he said, would be serving both the country and the Prince most judiciously.
He was asked why he had not communicated directly with Maurice. He replied that he had already seen how unwillingly the Prince heard him allude to the subject, and that moreover there was another clause in the letter of different meaning, and in his view worthy of grave consideration by the States.
No question was asked him as to this clause, but we have seen that it referred to the communication by du Agean to Langerac of a scheme for bestowing the sovereignty of the Provinces on the King of France. The reader will also recollect that Barneveld had advised the Ambassador to communicate the whole intelligence to the Prince himself.
Barneveld proceeded to inform the judges that he had never said a word to cast suspicion upon the Prince, but had been actuated solely by the desire to find out the inclination of the States. The communications which he had made on the subject were neither for discrediting the Prince nor for counteracting the schemes for his advancement. On the contrary, he had conferred with deputies from great cities like Dordtrecht, Enkhuyzen, and Amsterdam, most devoted to the Contra-Remonstrant party, and had told them that, if they chose to propose the subject themselves, he would conduct himself to the best of his abilities in accordance with the wishes of the Prince.
It would seem almost impossible for a statesman placed in Barneveld's position to bear himself with more perfect loyalty both to the country and to the Stadholder. His duty was to maintain the constitution and laws so long as they remained unchanged. Should it appear that the States, which legally represented the country, found the constitution defective, he was ready to aid in its amendment by fair public and legal methods.