The Birth of Venus to Botticelli's Florentine contemporary, and Lorenzo di Medici's court poet, Angelo Poliziano. The iconography of "The Birth of Venus" is similar to a description of a relief of the event in Poliziano's poem the "Stanze per la giostra", commemorating a Medici joust in 1475, which may also have influenced Botticelli, although there are many differences. For example Poliziano talks of multiple Horae and zephyrs. Older writers, following Horne, posited that "his patron Lorenzo di Pierfrancesco asked him to paint a subject illustrating the lines", and that remains a possibility, though one difficult to maintain so confidently today. Another poem by
Sandro Botticelli in 1481 for Milan, the Pollaiolo brothers in 1484 for Rome, and Andrea Verrochio in 1485 for Venice. The remaining leaders of Florentine painting, Botticelli, Domenico Ghirlandaio and Filippino Lippi, worked on a major fresco cycle with Perugino, for Lorenzo the Magnificent's villa at Spedalletto near Volterra. Botticelli painted many Madonnas, covered in a section below, and altarpieces and frescos in Florentine churches. In 1491 he served on a committee to decide upon a façade for the Cathedral of Florence, receiving the next year a small payment for a design for a scheme, eventually abortive, to put mosaics on some