sentence1: The superb frescoes of the life of Jesus in the St. Mary Magdalen Chapel (closest to altar on the right nave) and of St. Francis's vows of poverty, chastity, and obedience above the elegant Gothic high altar are attributed to Giotto (1307) and his workshop.
sentence2: Giotto and his workshop were responsible for the frescoes in the St. Mary Magdalen Chappel.