We shall see the way in which the Comacines spread fraternity wherever they went. When they began building in any new place, they generally founded a lodge there, which comprised a _laborerium_ and school. Thus we find one under the Antellami family in Parma before 1200, and not long after one in Modena under the same masters from Campione. The lodge is clearly defined at Orvieto and Siena. In Lucca there was a _laborerium_ before the year 1000. In 1332 it had obtained privileges. At Milan there was evidently another, for on February 3, 1383, the archbishop invites the architects _Fratelli_ (brethren), and others who understand the work, to inspect the models for the cathedral; now these words evidently refer to a Masonic brotherhood, as does the term _Opera Magiestatem_ so often met with in old documents. In the Marches of Ancona is a sepulchre inscribed to the _fratres Comacini_, and in the Abruzzi are chapels dedicated by them. In Rome it is recorded that they met in the church of SS. Quattro Coronati. These patron saints of the guild, the four holy crowned ones (Santi Quattro Coronati), strike me as having a peculiar significance in regard to their origin. We are told that during the persecutions under Diocletian, four brethren, named Nicostratus, Claudius, Castorio, and Superian[12] (either brothers, or more likely members of the same _Collegium_), who were famous for their skill in building and sculpture, refused to exercise their art for the pagan Emperor. "We cannot," they said, "build a temple for false gods, nor shape images in wood or stone to ensnare the souls of others." They were all martyred in different ways: one scourged, one shut up and tortured in an iron case, one thrown into the sea; the other was decapitated. Their relics were in the time of St. Leo placed in four urns, and deposited in the crypt of the church, which was built to their honour, in the time of Honorius, by the Comacines then in Rome. It has always been the especial church of the guild, and their meeting-place. They had an altar dedicated to the same saints at Siena, and another at Venice. We find from the statutes of the Sienese guild as late as the fourteenth century, that the _fête_ of the "Quattro" was kept in a special manner by the Masonic guild. All the Church _fêtes_ are classed together as days when no work is to be done, but the day of the SS. Quattro has two laws all to itself, and is kept with peculiar ceremonies.[13] On the altar of this church on Mount Aventine are silver busts of the four Magister martyrs; and on the wall is an ancient inscription, as follows--