We may conveniently begin the story of Sienese art with the coming of Niccolò Pisano to Siena in 1266, the year after Dante's birth, for the work of the great marble pulpit of the Duomo. Niccolò's son, Giovanni, became a citizen of Siena, and was chief architect of the Duomo during the two closing decades of the century. Stimulated by their presence and example, there rose an independent school of Sienese sculptors, which flourished from the end of the thirteenth to the middle of the fourteenth century--a school which chronologically succeeds to that founded by Niccolò Pisano, and anticipates the rise of the Florentine school under Andrea Pisano's influence. These Sienese sculptors were mainly employed upon the Cathedrals of Siena and of Orvieto, and in making tombs in other cities of Italy, sepulchral monuments in which, writes M. Reymond, "the Sienese school reveals a very special and new character, which is the subordination of the religious idea to the civil idea."[60] Tino da Camaino, who sculptured the famous tomb of Henry VII. at Pisa and worked for the royal Angevins of Naples; the architects, Agostino di Giovanni and Agnolo di Ventura; Cellino di Nese, who made the tomb of the poet Cino at Pistoia; Gano da Siena and Ramo di Paganello; Lorenzo Maitani, whose fame is for ever linked to the glorious Duomo of Orvieto; these are the masters of chief repute in this early Sienese school. All these belong to that bright epoch in the story of Siena previous to the great pestilence of 1348. Then there came a sad decline, as the statues of the Apostles in the chapel of the Campo, executed between 1376 and 1384, show only too clearly. But, just at the time that St Catherine was beginning her public life, Siena became the mother of one of the greatest sculptors of the Renaissance.