Sistine Chapel ceiling identity of the figures in the lunettes and spandrels, continue to defy interpretation. Modern scholars have sought, as yet unsuccessfully, to determine a written source of the theological program of the ceiling and have questioned whether or not it was entirely devised by the artist himself, who was both an avid reader of the Bible and a genius. Also of interest to some modern scholars is the question of how Michelangelo's own spiritual and psychological state is reflected in the iconography and the expression of the ceiling. One such speculation is that Michelangelo was tormented by conflict between homosexual desires
Primavera (painting) Three Graces of the "Primavera". (Kenneth Clark) The origin of the painting is unclear. Botticelli was away in Rome for many months in 1481/82, painting in the Sistine Chapel, and suggested dates are in recent years mostly later than this, but still sometimes before. Thinking has been somewhat changed by the publication in 1975 of an inventory from 1499 of the collection of Lorenzo di Pierfrancesco de' Medici. The 1499 inventory records it hanging in the city palace of Lorenzo di Pierfrancesco de' Medici and his brother Giovanni "Il Popolano". They were the cousins of Lorenzo de' Medici ("Lorenzo il