Less improbable is the story that Don Carlos had secret sympathy with the Flemish malcontents, or at least some leaning towards the Protestant heresy. This, it is said, explains the wish of Don Carlos to be intrusted with the administration of the Netherlands, the unwillingness of Philip to publish the reason of his treatment of his son, and his letter to his aunt the Queen of Portugal, in which he spoke of ‘sacrificing to God his own flesh and blood, preferring God’s service and the welfare of his people to all human considerations.’ These expressions are, however, quite compatible with the third, and far more probable, hypothesis that Don Carlos was mad. Two of his brothers had died of epilepsy. Don Carlos, who was born in July, 1545, was a sickly child, subject to serious feverish and bilious attacks; that as he grew in years he became, in spite of a certain reckless generosity and an extravagant attachment to a few, arrogant, violent, and unmanageable. A fall down a staircase on his head, in April, 1562, which necessitated an operation of trepanning, increased his violence, and from this moment his actions were those of a crazy man. He insulted women of position with opprobrious epithets. Twice he swallowed costly jewels. He forced a shoemaker to eat stewed strips of a pair of boots because they did not fit. He violently assaulted the Duke of Alva, because the Duke was sent to the Netherlands instead of himself, and even Don John, to whom he was much attached. He declared that he meditated killing a man whom he hated, and sought for absolution beforehand. He attempted to fly from Spain, and probably to rebel against his father. Of his insanity the Venetian ambassador was convinced, and that this is the explanation of the mystery gains confirmation from a secret letter of Philip to the Pope, of which, although the original has disappeared, a translation has been preserved, and in which insanity is pleaded as the justification for the treatment of the Prince; while surely we cannot wonder that Philip should be anxious to keep secret the fact that the insanity of Joanna was reappearing in her great-grandson? Nor, as far as we can see, does the actual treatment of Don Carlos, while in prison, appear to have been exactly cruel. No doubt, he was most carefully watched. He was not to be allowed to talk on politics, or to have any news of the outer world; he was only allowed books of a devotional character; but his guardians were men of good birth, they were enjoined to lighten his captivity by conversation, and he was not tortured or starved. | Was he poisoned?