The bargain was struck.  On the 11th June 1616, Sir Robert Sidney, who had become Lord Lisle, gave over the city of Flushing to the States, represented by the Seignior van Maldere, while Sir Horace Vere placed the important town of Brielle in the hands of the Seignior van Mathenesse.  According to the terms of the bargain, the English garrisons were converted into two regiments, respectively to be commanded by Lord Lisle’s son, now Sir Robert Sidney, and by Sir Horace Vere, and were to serve the States.  Lisle, who had been in the Netherlands since the days of his uncle Leicester and his brother Sir Philip Sidney, now took his final departure for England.

Thus this ancient burthen had been taken off the Republic by the masterly policy of the Advocate.  A great source of dread for foreign complication was closed for ever.

The French-Spanish marriages had been made.  Henry iv. had not been murdered in vain.  Conde and his confederates had issued their manifesto.  A crisis came to the States, for Maurice, always inclined to take part for the princes, and urged on by Aerssens, who was inspired by a deadly hatred for the French government ever since they had insisted on his dismissal from his post, and who fed the Stadholder’s growing jealousy of the Advocate to the full, was at times almost ready for joining in the conflict.  It was most difficult for the States-General, led by Barneveld, to maintain relations of amity with a government controlled by Spain, governed by the Concini’s, and wafted to and fro by every wind that blew.  Still it was the government, and the States might soon be called upon, in virtue of their treaties with Henry, confirmed by Mary de’ Medici, not only to prevent the daily desertion of officers and soldiers of the French regiments to the rebellious party, but to send the regiments themselves to the assistance of the King and Queen.

There could be no doubt that the alliance of the French Huguenots at Grenoble with the princes made the position of the States very critical.  Bouillon was loud in his demands upon Maurice and the States for money and reinforcements, but the Prince fortunately understood the character of the Duke and of Conde, and comprehended the nature of French politics too clearly to be led into extremities by passion or by pique.  He said loudly to any one that chose to listen: 

“It is not necessary to ruin the son in order to avenge the death of the father.  That should be left to the son, who alone has legitimate authority to do it.”  Nothing could be more sensible, and the remark almost indicated a belief on the Prince’s part in Mary’s complicity in the murder of her husband.  Duplessis-Mornay was in despair, and, like all true patriots and men of earnest character, felt it almost an impossibility to choose between the two ignoble parties contending for the possession of France, and both secretly encouraged by France’s deadly enemy.