Cosimo Rosselli was considered ever since Vasari to have been the weakest of the
painters who worked in the Sistine Chapel on the fifteenth century decoration.
It is unknown how it happened that he was given the honour of working next to
the three quite illustrious masters (Botticelli, Perugino, Ghirlandaio).
Together with his assistants, he painted two frescoes of the cycle on the north
wall of the chapel depicting scenes from the life of Christ (the Sermon on the
Mount and the Last Supper) as well as two frescoes of the cycle on the south
wall depicting scenes from the life of Moses (the Crossing of the Red Sea and
the Tables of the Law with the Golden Calf).