In 1550, Julius III. succeeded to the pontificate, and Michael to new vexations. His rivals endeavoured to displace him for unfitness in the conduct of St. Peter’s. A committee of architects was appointed to investigate the charge, in the presence of the pope. The committee alleged that the church wanted light; and they furnished the cardinals Salviati and Marcello Cervino with plans, to show that Michael had walled up a recess for three chapels, and made only three insufficient windows. “Over those windows are to be placed three others,” answered Michael. “You never said that before,” answered one of the cardinals. To this Michael indignantly replied, “I am not, neither will I ever be, obliged to tell your eminence, or any one else, what I ought or am disposed to do; it is your office to see that money be provided, to keep off the thieves, and to leave the building of St. Peter’s to me.” The pope decided in Michael’s favour. From that time Julius prosecuted no work in painting or sculpture without Michael’s advice; and his estimation of him was so high, that he told him at a public audience, that if he died before himself, he should be embalmed, and kept in his own palace, that his body might be as permanent as his works. Soon after the death of Julius III. in 1555, Paul IV., the new pontiff, expressed his displeasure of the academical figures in the Last Judgment, and intimated an intention to “reform” the picture. Michael sent this message to him: “What the pope wishes, is very little, and may be easily effected; for if his holiness will only ‘reform’ the opinions of mankind, the picture will be reformed of itself.” This holy father plunged Italy in blood by his vindictive passions; and while war ravaged its plains, Michael, at the age of 82, retreated for a while to a monastery. On coming from his seclusion, he wrote to Vasari, “I have had a great deal of pleasure in visiting the monks in the mountains of Spoleto: indeed, though I am now returned to Rome, I have left the better half of myself with them; for in these troublesome times, to say the truth, there is no happiness but in such retirement.” The death of this pope filled Rome with “tumultuous joy,” and the papal chair was ascended by Pius IV., in whose pontificate, wearied and reduced by the incessant attacks and artifices of his enemies, Michael, at the age of 87, resigned his office of architect to St. Peter’s; but the pope, informed of the frauds which had occasioned it, reinstated him, and to induce him to retain the appointment, ensured strict adherence to his designs until the building should be completed.