Medici, Cosimo de'

known as Cosimo the Elder

born Sept. 27, 1389, Florence
died Aug. 1, 1464, Careggi, near Florence

Founder of one of the main lines of the Medici family.

The son of the Florentine banker Giovanni di Bicci de'Medici (1360–1429), Cosimo represented the Medici bank and handled papal finances, becoming the wealthiest man of his time. Another leading family, the Albizzi, had him imprisoned (1433) and tried to assassinate him, but a year later the Medici regained power in Florence, and Cosimo triumphantly returned. He was the architect of the Peace of Lodi (1454). An alliance with the Sforzas of Milan provided him with troops to crush a coup d'état in 1458, after which he created a Senate composed of 100 loyal supporters (the Cento). He was a patron of scholarship and the arts, including such figures as Donatello and Filippo Brunelleschi.

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▪ ruler of Florence [1389-1464]
byname  Cosimo the Elder,  Italian  Cosimo il Vecchio,  Latin byname  Pater Patriae (Father of his Country)  
born Sept. 27, 1389, Florence
died Aug. 1, 1464, Careggi, near Florence

      founder of one of the main lines of the Medici family that ruled Florence from 1434 to 1537.

      The son of Giovanni di Bicci (1360–1429), Cosimo was initiated into affairs of high finance in the corridors of the Council of Constance, where he represented the Medici bank. He went on from there to manage the papacy's finances and in 1462 filled his coffers to overflowing by obtaining from Pius II the Tolfa alum mines monopoly, alum being indispensable to Florence's famed textile industry. He was certainly the wealthiest man of his time, not only in terms of bullion but also in the amount of bank and promissory notes payable to his bank in Florence and to its branches operating in all the important financial markets of Europe. Such great power alone would have been sufficient to set the oligarchy against him; his “popular” policies rendered him completely intolerable. The Albizzi, one of the other leading families, attempted a coup. In 1431 Cosimo was vacationing in Cafaggiolo when he received a summons to reply to his indictment for the capital crime “of having sought to elevate himself higher than others.” He could have taken refuge in Bologna, but instead he chose to let himself be incarcerated in a small dungeon in the Palazzo Vecchio. The Albizzi soon discovered that so wealthy a man could not be assassinated so easily. The jailer was bribed to taste Cosimo's food beforehand, and the gonfalonier, assuaged by the famous gold-bearing mules, arranged to have the usual death sentence reduced to banishment. Cosimo retired to Padua and Venice, where he was received like a sovereign. Exactly one year later, a sudden and unexpected move by the Medici, in which they doctored elections, gave them back the signoria (council of government). Cosimo triumphantly reentered the city; and his enemies went into exile, never to return. The Medici principate had begun (1434).

      Cosimo traditionally has been accused of destroying Florentine liberties; but these ancient liberties, more of an illusion than a reality, had already ceased to exist in the Florence of the Albizzi. Cosimo only had to perpetuate the formula of those he was evicting, in other words, to maintain the appearance of a constitutional regime. But, in order not to be taken by surprise like the Albizzi, he perfected the system. He made no changes in the law's actual administration, but in the spirit of the law he changed everything. Previously, it was the rule to fill high official positions by drawing lots. The process was now manipulated so that only the names of men who could be depended upon were drawn. The independent mood of the two municipal assemblies was neutralized by making an exceptional procedure the rule: dictatorial powers were now granted for a fixed term that was always renewed. He also made an alliance with the Sforzas of Milan, who, for gold, provided him with troops. This alliance permitted Cosimo to crush the rising opposition by a coup d'état in August 1458 and to create a Senate composed of 100 loyal supporters (the Cento, or Hundred); thus he was able to live out the last six years of his life in security.

      Cosimo required undivided power in order to carry out his plans as well as to satisfy his passions, above all his passion for building. Brunelleschi completed the “marble hat” of his famous cupola at the time of Cosimo's return in 1434; in addition, he almost completed the work on S. Lorenzo and on the Sagresta Vecchia and began work on the strange rotunda of Sta. Maria degli Angeli. He drew up plans for a princely palace for Cosimo; but the latter preferred the less lofty plans of Michelozzo, although Michelozzo's Medici Palace (the modern Palazzo Medici-Riccardi) was only slightly less grandiose and provided the first break with the family's traditional stance of humility. Under the patronage of Cosimo, Michelozzo also built the convent of S. Marco, the Medici Chapel at Sta. Croce, and a chapel at S. Miniato. In addition to architects, Cosimo gathered around him all the masters of an age abounding in geniuses: the sculptors Lorenzo Ghiberti and Donatello and the painters Andrea del Castagno, Fra Angelico, and Benozzo Gozzoli. He not only assured these artists of commissions but also treated them as friends at a time when people still looked upon them as manual workers.

      Cosimo also organized a methodical search for ancient manuscripts, both within Christendom and even, with Sultan Mehmed II's permission, in the East. The manuscripts picked up by his agents form the core of the incomparable library that is rather unjustly called the Laurentian (Laurenziana), after his grandson. He opened it to the public and employed copyists in order to disseminate scholarly editions compiled by, among others, the Humanists Poggio and Marsilio Ficino.

      In short, he was well prepared for the singular opportunity that came his way in 1439, when he succeeded in enticing the ecumenical council from Ferrara to Florence. The Council of Florence, Cosimo's most important success in foreign relations, deluded itself into believing it had finally ended the schism with the Eastern Church. As for Cosimo, he assiduously attended the lectures delivered by the Greek scholars, and at the age of 50 he became an ardent admirer of Plato. He then re-created Plato's ancient academy in his villa of Careggi, where Marsilio Ficino became the Platonic cult's high priest. At the same time the University of Florence, with conspicuous success, resumed the teaching of Greek, which had been unknown in the West for 700 years. Thus Cosimo was one of the mainsprings of Humanism.

      In 1440 Cosimo prematurely lost his brother, who had been his staunchest supporter. In 1463 he had to face the loss of his most gifted son, Giovanni, thus leaving the succession to Piero, born in 1416, who was sickly and almost constantly bedridden. The future seemed dark to the old man as he roamed through his palace, sighing, “Too big a house for such a small family.” He died in Careggi in 1464, and a huge crowd accompanied his body to the tomb in S. Lorenzo. The following year, the signoria conferred upon him the deserved title of Pater Patriae (Father of His Country).

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Universalium. 2010.

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