In Rome, after unity was restored following the Western Schism, humanist circles, cultivating philosophy and searching out and sharing ancient texts tended to gather where there was access to a library. The Vatican Library was not coordinated until 1475 and was never catalogued or widely accessible: not all popes looked with satisfaction at gatherings of unsupervised intellectuals. At the head of this movement for renewal in Rome was Cardinal Bessarion, whose house from the mid-century was the centre of a flourishing academy of Neoplatonic philosophy and a varied intellectual culture. His valuable Greek as well as Latin library (eventually bequeathed to the city of Venice after he withdrew from Rome) was at the disposal of the academicians. Bessarion, in the latter years of his life, retired from Rome to Ravenna, but he left behind him ardent adherents of the classic philosophy.