In 1437 Cosimo commissioned Michelozzo, the Medici family’s favourite architect, to rebuild the San Marco convent on Renaissance lines. By 1438 the work was well underway and the final dedication took place on Epiphany night 1443 in the presence of Pope Eugene IV and the Archbishop of Capua, cardinal Niccolò d'Acciapaccio. San Marco became one of the main elements in the new configuration of the area to the North of the centre of Florence (the so-called “Medici quartiere”), along with the Medici family palazzo and the basilica of San Lorenzo. These years marked the height of the Medici family’s artistic patronage, above all in connection with the transfer to Florence of the Ecumenical Council from Ferrara to Florence in 1439. Michelozzo succeeded in developing an architectural model for the renaissance library. It included a long narrow hall, divided into three parts by two rows of plain columns.