the secret negotiator of the preliminary arrangement with
France, soon afterwards confirmed by the triumphant treaty of April,
1559. He had conducted these initiatory conferences with the Constable
Montmorency and Marshal de Saint Andre with great sagacity, although
hardly a man in years, and by so doing he had laid Philip under deep
obligations. The King was so inexpressibly anxious for peace that he
would have been capable of conducting a treaty upon almost any terms. He
assured the Prince that "the greatest service he could render him in this
world was to make peace, and that he desired to have it at any price what
ever, so eager was he to return to Spain." To the envoy Suriano, Philip
had held the same language. "Oh, Ambassador," said he, "I wish peace on
any terms, and if the King of France had not sued for it, I would have
begged for it myself."

With such impatience on the part of the sovereign, it certainly
manifested diplomatic abilities of a high character in the Prince, that
the treaty negotiated by him amounted to a capitulation by France. He was
one of the hostages selected by Henry for the due execution of the
treaty, and while in France made that remarkable discovery which was to
color his life. While hunting with the King in the forest of Vincennes,
the Prince and Henry found themselves alone together, and separated from
the rest of the company. The French monarch's mind was full of the great
scheme which had just secretly been formed by Philip and himself, to
extirpate Protestantism by a general extirpation of Protestants. Philip
had been most anxious to conclude the public treaty with France, that he
might be the sooner able to negotiate that secret convention by which he
and his Most Christian Majesty were solemnly to bind themselves to
massacre all the converts to the new religion in France and the
Netherlands. This conspiracy of the two Kings against their subjects was
the matter nearest the hearts of both. The Duke of Alva, a fellow hostage
with William of Orange, was the plenipotentiary to conduct this more
important arrangement. The French monarch, somewhat imprudently imagining
that the Prince was also a party to the plot, opened the whole subject to
him without reserve. He complained of the constantly increasing numbers
of sectaries in his kingdom, and protested that his conscience would
never be easy, nor his state secure until his realm should be delivered
of "that accursed vermin." A civil r