ight.--[I am assured by Mr.
Gachard that a copy of this important letter is confidently expected by
the Commission Royale d'Histoire.]

As Philip generally told the truth to the Pope, it is probable that the
secret, when once revealed, will contain the veritable solution of the
mystery. Till that moment arrives, it seems idle to attempt fathoming the
matter. Nevertheless, it may be well briefly to state the case as it
stands. As against the King, it rests upon no impregnable, but certainly
upon respectable authority. The Prince of Orange, in his famous Apology,
calls Philip the murderer of his wife and of his son, and says that there
was proof of the facts in France. He alludes to the violent death of
Carlos almost as if it were an indisputable truth. "As for Don Charles,"
he says, "was he not our future sovereign? And if the father could allege
against his son fit cause for death, was it not rather for us to judge
him than for three or four monks or inquisitors of Spain?"

The historian, P. Matthieu, relates that Philip assembled his council of
conscience; that they recommended mercy; that hereupon Philip gave the
matter to the inquisition, by which tribunal Carlos was declared a
heretic on account of his connexion with Protestants, and for his attempt
against his father's life was condemned to death, and that the sentence
was executed by four slaves, two holding the arms, one the feet, while
the fourth strangled him.

De Thou gives the following account of the transaction, having derived
many of his details from the oral communications of Louis de Foix:

Philip imagined that his son was about to escape from Spain, and to make
his way to the Netherlands. The King also believed himself in danger of
assassination from Carlos, his chief evidence being that the Prince
always carried pistols in the pockets of his loose breeches. As Carlos
wished always to be alone at night without any domestic in his chamber,
de Foix had arranged for him a set of pulleys, by means of which he could
open or shut his door without rising from his bed. He always slept with
two pistols and two drawn swords under his pillow, and had two loaded
arquebusses in a wardrobe close at hand. These remarkable precautions
would seem rather to indicate a profound fear of being himself
assassinated; but they were nevertheless supposed to justify Philip's
suspicions, that the Infante was meditating parricide. On Christmas eve,
however (1567), Don Carlos to