I shall glean some further particulars concerning this mysterious affair from two English contemporaries, Howel and Wilson, who wrote from their own observations.  Howel had been employed in this projected match, and resided during its negotiation at Madrid.

Howel describes the first interview of Prince Charles and the Infanta.  “The Infanta wore a blue riband about her arm, that the prince might distinguish her, and as soon as she saw the prince her colour rose very high.”—­Wilson informs us that “two days after this interview the prince was invited to run at the ring, where his fair mistress was a spectator, and to the glory of his fortune, and the great contentment both of himself and the lookers-on, he took the ring the very first course.”  Howel, writing from Madrid, says, “The people here do mightily magnify the gallantry of the journey, and cry out that he deserved to have the Infanta thrown into his arms the first night he came.”  The people appear, however, some time after, to doubt if the English had any religion at all.  Again, “I have seen the prince have his eyes immovably fixed upon the Infanta half an hour together in a thoughtful speculative posture.”  Olivares, who was no friend to this match, coarsely observed that the prince watched her as a cat does a mouse.  Charles indeed acted everything that a lover in one of the old romances could have done.[2] He once leapt over the walls of her garden, and only retired by the entreaties of the old marquis who then guarded her, and who, falling on his knees, solemnly protested that if the prince spoke to her his head would answer for it.  He watched hours in the street to meet with her; and Wilson says he gave such liberal presents to the court, as well as Buckingham to the Spanish beauties, that the Lord Treasurer Middlesex complained repeatedly of their wasteful prodigality.[3]

Let us now observe by what mode this match was consented to by the courts of Spain and Rome.  Wilson informs us that Charles agreed “That any one should freely propose to him the arguments in favour of the catholic religion, without giving any impediment; but that he would never, directly or indirectly, permit any one to speak to the Infanta against the same.”  They probably had tampered with Charles concerning his religion.  A letter of Gregory XV. to him is preserved in Wilson’s life, but its authenticity has been doubted.  Olivares said to Buckingham, “You gave me some assurance and hope of the prince’s turning catholic.”  The duke roundly answered that it was false.  The Spanish minister, confounded at the bluntness of our English duke, broke from him in a violent rage, and lamented that state matters would not suffer him to do himself justice.  This insult was never forgiven; and some time afterwards he attempted to revenge himself on Buckingham, by endeavouring to persuade James that he was at the head of a conspiracy against him.