Meanwhile, Domenico Ghirlandaio, a meticulous and accurate draughtsman and one of the finest portrait painters of his age, executed two cycles of frescoes for Medici associates in two of Florence's larger churches, the Sassetti Chapel at Santa Trinita and the Tornabuoni Chapel at Santa Maria Novella. In these cycles of the "Life of St Francis" and the "Life of the Virgin Mary" and "Life of John the Baptist" there was room for portraits of patrons and of the patrons' patrons. Thanks to Sassetti's patronage, there is a portrait of the man himself, with his employer, Lorenzo il Magnifico, and Lorenzo's three sons with their tutor, the Humanist poet and philosopher, Agnolo Poliziano. In the Tornabuoni Chapel is another portrait of Poliziano, accompanied by the other influential members of the Platonic Academy including Marsilio Ficino.