During the centuries when the Duomo of Siena rose into beauty, her sister of Orvieto also grew under the hands of the same brotherhood. Lorenzo Maitani, having been trained by his master, Giovanni di Pisa, at Siena, was called to Orvieto in 1310. His family lasted long in the guild, and won much fame. His father Vitale was a master sculptor who had worked under Niccolò and Giovanni. His sons Vitale and Antonio both graduated in the Siena or Orvieto Lodge, and Vitale became chief architect at Orvieto for six months only, on Lorenzo's death, when Master Meo di Nuti di Neri succeeded him. It is not probable that beyond the design, Maitani had much to do with the façade, which was incomplete till about 1500. The beautiful Bible in stone which adorns the pilasters of the three fine doors may have been designed by Maitani, but the work was done by his sons, with the help of many sculptors of the guild from Siena, Florence, and Lombardy. The upper part was not added till the time of Michele Sanmichele of Verona, who in 1509 was nominated chief architect of the façade at a salary of one hundred florins a year. He is described as "Magistrum Michaelem, Magistri Johannis de Verona, principalem magistrum fabrice faciate de Urbe vetere."[228] [Illustration: DOOR IN ORVIETO CATHEDRAL. _See page 305._] The enthusiastic work of the numberless artists all vying with each other in beautifying this marvellous church bore rather heavily on the funds of the _Opera_, for in August 1521 the _camarlengo_ had to stop the expenses of the façade and finish some more needful parts of the church first. So "Mag. Michael Johannes Michaelis, Caput Magister dicte Fabrice," was given permission to absent himself for three days a week, for other work (no doubt the church at Spello), and the _Opera_ continued his salary on half-pay.[229] About this time a competition was offered among the _Magistri_ for the best design for the chapel of the Three Kings at Orvieto. Antonio Sangallo and Michele were the two best, and when Pope Clement VII. fled to Orvieto from the sack of Rome in 1527, the choice was made with his concurrence, Michele's being chosen. Both San Michele and San Gallo rose to extreme eminence in the guild; many of the finest palaces in Florence and Venice were by them. It is interesting to find that they were both Lombard brethren of the guild by hereditary descent. The preponderance of Lombards in all these later lodges is sufficient proof of the connection of these lodges with the older Comacines, from whom their ancestry can be traced direct.