In the _Historia Compostelana_ we read that the cathedral was set on fire in 1170, and Ferreiro says that in 1878, when excavations were made within the precincts of the building, traces of fire were certainly found. He takes this as an indication that the Moors must have used fire in their attempts to destroy the cathedral. Aimerico[135] says that in spite of the fire the structure was completed in 1122. He remarks enthusiastically that every one who ascends to the gallery, even if he be sad at heart, must become joyful in contemplating from thence the beauty of the cathedral. In those days it was much better lighted than it is at present, for the upper windows had not been closed up, and the light of heaven streamed in on every side. Clearly its present gloom, though not unpleasing, was never intended by the architect. The names of two master-builders who superintended the building have been preserved--Bernardo and Rotberto: the latter had fifty masons to work under him, and the former is characterised by Aimerico as _mirabilis magister_. I have already described the eagerness with which pilgrims of all ranks, ages, and sexes assisted the workmen. In the year 1124 two canons of Santiago were engaged in collecting money for the completion of the cathedral in places as far away as Sicily and Apulia. Money continued to flow in from all parts of Spain. “After St. James’s body had been removed to Santiago,” writes Ford, “riches poured in, especially the corn-rent, said to have been granted in 846 by Ramiro, to repay Santiago’s services at Clavijo, where he (the Apostle) killed single-handed 60,000 Moors--more or less. This grant was a bushel of corn from every acre in Spain, and was called _el voto_ and _el morion_, the votive offering of the quantity which St. James’s spacious helmet contained.... This corn-rent, estimated at £200,000 a year, used to be collected by agents.... This tax was abolished in 1835.” Where the cupola now rises over the centre of the cross which the building forms there once stood one of the original nine towers: it was destroyed in 1384. The cupola is Gothic and polygonal in form, and should have eight elegantly pointed Gothic windows, separated from one another by Byzantine columns, but, according to Fernandez Sanchez, some architect of the seventeenth century substituted ugly rectangular windows here and there, while he blocked up some of the old ones, and so firmly were they closed that it was found impossible to restore them to their original form when the restoration of the edifice was put in hand towards the end of the nineteenth century. This cupola, according to Sanchez, is the first piece of work put in by the later generations who subsequently did so much to ruin the harmonious unity, the exquisite symmetry of the original cathedral.