By the earnest advice of Barneveld in the name of the States-General and as the result of a general council of many Protestant princes of Germany, it had been settled that those two should together provisionally hold and administer the duchies until the principal affair could be amicably settled.
The possessory princes were accordingly established in Dusseldorf with the consent of the provincial estates, in which place those bodies were wont to assemble.
Here then was Spain in the person of Leopold quietly perched in the chief citadel of the country, while Protestantism in the shape of the possessory princes stood menacingly in the capital.
Hardly was the ink dry on the treaty which had suspended for twelve years the great religious war of forty years, not yet had the ratifications been exchanged, but the trumpet was again sounding, and the hostile forces were once more face to face.
Leopold, knowing where his great danger lay, sent a friendly message to the States-General, expressing the hope that they would submit to his arrangements until the Imperial decision should be made.
The States, through the pen and brain of Barneveld, replied that they had already recognized the rights of the possessory princes, and were surprised that the Bishop-Archduke should oppose them.

They expressed the hope that, when better informed, he would see the validity of the Treaty of Dortmund.

"My Lords the States-General," said the Advocate, "will protect the princes against violence and actual disturbances, and are assured that the neighbouring kings and princes will do the same.

They trust that his Imperial Highness will not allow matters, to proceed to extremities." This was language not to be mistaken.

It was plain that the Republic did not intend the Emperor to decide a question of life and death to herself, nor to permit Spain, exhausted by warfare, to achieve this annihilating triumph by a petty intrigue.
While in reality the clue to what seemed to the outside world a labyrinthine maze of tangled interests and passions was firmly held in the hand of Barneveld, it was not to him nor to My Lords the States-General that the various parties to the impending conflict applied in the first resort.
Mankind were not yet sufficiently used to this young republic, intruding herself among the family of kings, to defer at once to an authority which they could not but feel.
Moreover, Henry of France was universally looked to both by friends and foes as the probable arbiter or chief champion in the great debate.