Francis was sent to Genoa and thence to Spain in charge of Lannoy, Viceroy of Naples, to the indignation of Bourbon and Pescara, who both hoped to have had the honour of escorting the royal prisoner to Madrid.

On his arrival in Spain Charles sent a courteous letter to Louise of Savoy, who was acting as regent during her son's absence. Louise in reply says: 'Monseigneur! By the letter which it has pleased you to write to me, I have learned the arrival of monseigneur the king, my son, in your country, and the goodwill and good disposition you entertain to treat him well, for which I know not how sufficiently to express to you my thanks and gratitude, humbly beseeching you, sir, to continue to act in this liberal manner, which so well befits your greatness and magnanimity. As for the rest, monseigneur, in pursuance of what you have required of me, I have given a safe conduct to your courier, desiring to do your pleasure in this and all other things, as I would for the said monseigneur, my son, the king, and this the Lord knows, whom I pray to give you a good and long life.—Your most humble Loyse.'[103]

On June the 25th, 1525, Charles wrote a long letter to his brother Ferdinand from Toledo, in which he says: 'As to the movement of the Lutherans, and the evil they have done, and to all appearance mean to do, it has annoyed, and does continue to annoy me bitterly. If it were in my power to remedy it speedily, I would spare neither my person nor my estates in the cause, but you see the difficulty there is in it, especially since I hope to be in Italy so soon, in order to take possession of my crowns[104] as I have already written you word.

'When that is done, I mean to exert all my power in the extermination of this said sect of Lutherans....' Charles goes on to say, in answer to his brother's request that he would use his influence to get him (Ferdinand) elected King of the Romans, that for the present the matter had better be kept secret until he had been crowned emperor, as the electors 'would probably allege, and with truth, that at present I am myself, in fact, no more than King of the Romans, and that on this account the election of another ought to be deferred....

'The King of France is now here. I have caused him to be placed in the castle of Patina, where he will be well treated. He has offered me certain articles of peace, which I send you a copy of, and has promised to do still better. I will let you know the result; and if it tends to my honour and advantage, and to the preserving of my friends, I will follow your advice in coming to terms, well knowing that it would be very propitious to my interests to make peace before I leave this for Italy. If the said peace cannot be concluded, I shall order the said King of France to be kept here in all safety, and will deliberate on the subject of a war for next year....

'In order to leave these kingdoms under good government, I see no other remedy than to marry the Infanta Donna Isabella of Portugal, since the Cortes of the said kingdoms have required me to propose myself for such a union, and that on his part the King of Portugal offers me a million of ducats, most of them to be paid at once, in order to assist in defraying the expenses of our said journey to Italy. Were this marriage to take place, I could leave the Government here in the person of the said Infanta, who should be provided with a good council, so that there would be no apparent cause to fear any new movement.'[105]

On the 31st of July Charles again writes to Ferdinand: 'As to the affairs of my marriage in Portugal, it remains in the same state as when I last wrote to you, waiting for the consent of England, as also for your advice on the subject. Besides, it is right that before my departure, I should know whether I shall have peace or war; and seeing that there is every hope of the said peace being concluded, only that time is requisite for it, I have settled to put off my Italian journey till next March or April. Thus I shall have time enough to be married in September, by which arrangement also I shall be able to receive the said consent, and your advice, and to ascertain the fact or failure of the said peace.'[106]

The following letter from Charles to Henry VIII., breaking off his marriage with Princess Mary, and giving all his reasons for so doing, is a most interesting diplomatic document. It is a pity that King Henry's answer has, as far as we know, not been preserved:—

'My good Father and Brother,—I had ordered Peñalosa to tell you what you must since have heard through your ambassadors at this my Court, who have likewise delivered your message to me. My answer to them has been that no alliance in the whole of Christendom could give me more pleasure than yours, not only owing to the great friendship which has existed of old between our royal houses, but on account of the great affection and love which you have shown me, whenever we have met together. I believe that my sentiments are well known to you, and I can assure you that my affection has not diminished in the least, but, on the contrary, is daily increasing, so as to become in time an almost indissoluble tie betwixt two brothers.

'You must know as well as I do the disasters and public calamities which this present war has brought on the Christian world at large, and on the empire in particular, and the great lack there is of appropriate remedy. To the cure of those evils it is my intention to apply myself entirely, since I am duly bound to do so; but I find one great obstacle in my way. You are aware of the great evils and disasters which my absence from these kingdoms once caused, owing to my not having been able to make such provision as was needed for the government of this country. In consequence whereof my subjects are pressingly requesting me to marry a princess who may fill my place, and govern during my absence, which is, in my opinion, the only way to keep them contented, and enable me to go about freely, and attend to my personal affairs. The only remedy I see for this difficulty, and for many others—which to so poor a writer as myself would take too much time to describe—is to anticipate the time of my said marriage, and likewise the payment of the sums to be allotted as the princess's dower. But as your ambassadors here have positively declared to me, in your name, that this expedient can nowise be adopted, nor the said marriage effected until the conclusion of a solid and lasting peace, I see no way to obviate the said difficulties, and ward off the impending evils. I hope you will be reasonable enough to appreciate at its due value the answer I have just given to your ambassadors, and will consider it as both just and expedient in the present state of my affairs. As to the continuance of our mutual friendship, on that point there is not the least danger. I can assure you there is nothing I desire so much, being of opinion that, although the form and terms of our alliance might be altered through my marrying in another quarter, yet our amity is to continue the same as ever, and so to be increased as to secure the mutual and lasting alliance which would have ensured from my union with the princess, your daughter. The better to accomplish the said object, and provide for our common interest, thereby promoting the welfare of Christendom at large, I propose that you and I should work together for the conclusion of a durable peace, likely to turn to our own mutual advantage and profit, so as to satisfy our consciences and discharge our duty towards God as Christian princes; and if, through our enemy's fault, the said peace should not be made, to devise together such means as may ensure the fulfilment of our common wishes, and the satisfaction of our claims.