Be bold therefore, most blessed Father, in the cause of Christendom, persevere with energy and confidence, and bring the matter to an end. Be convinced, since God inspires you, that opportune assistance will not be wanting. And at last, when you have scattered the barbarous foes of the Christian name, when your sheep are defended and their fold protected, not only will mankind ever remember to honour in you the father and the shepherd, but when in the end God recalls you to His heaven, whence you have now been sent down as His Vicar, you will live in unceasing heavenly joy, having as it were gloriously served your term of divine office.[77]

Lucrezia was as anxious about the physical well-being of her children as about their education. Some months before Cosimo died she was at Pisa with Giuliano, who was ill, and she writes to her husband:

Lucrezia de’ Medici to her husband Piero

I write thee several letters on the same day so that should one go astray thou wilt have news of Giuliano as thou desirest, by any one going there. Yesterday I wrote that as he was better I did not think the change suggested by Messer Mariotti was necessary, and last night I told thee the fever had returned as usual. My last letter was written at seven. After that he did not rest so quietly as on other nights, and he seems to me more uneasy than he should be now that the fever has diminished. I wish thee to know every small change so that thou canst the better judge what Maestro Mariotto writes; and act, not according to my ideas, but as thou thinkest best after reading our reports. His pulse is good, all functions are natural. The fever has returned almost as strong as on the fourteenth day, and has lowered but little. He is not so lively during the day as I could wish, being weakened by the strength of the fever. The Maestro says this is caused by the nature of the phlegm which is in him. I wish thee to know this.

But do not be anxious, for Giuliano is strong; he walks about the room, and, though pale, is of good complexion. I give thee all these details more for thy information than because Giuliano seems to me ill, or that the amelioration does not continue. I commend myself to thee.—The 24th November 1463 at the 16th hour.

Thy Lucrezia at Pisa.

At this moment Giuliano is awake, and the Maestro says he has never found him so free from fever, and that during convalescence people are always more uneasy. Dost thou understand?[78]

Cosimo de’ Medici to his son Piero at Pisa

Yesterday we received yours of the 19th, by which we see you are all well. This is most pleasing to us, also that the town is healthy and that you are taking good care of Giuliano who is well. Again we beg of you to see that he takes care of himself. We have also received the letters from Bruges and all my other letters which you had, all shall be answered.

I note that you will write to Niccolò in a few days, when the farm of Piero da Gagliano will be taken over. The sooner this is done the better, as the creditors have begun to get restless, that is Giovanni Rucie ...[79] to whom I have notified that he is to stop proceedings, as he will be paid before the end of the month.