The first person at Rome who covered the whole of the walls of his house with marble, according to Cornelius Nepos,[1] was Mamurra,[2] who dwelt upon the Cælian Hill, a member of the equestrian order, and a native of Formiæ, who had been præfect of the engineers under C. Cæsar in Gaul. Such was the individual, that nothing may be wanting to the indignity of the example, who first adopted this practice; the same Mamurra, in fact, who has been so torn to pieces in the verses of Catullus of Verona. Indeed, his own house proclaimed more loudly than Catullus could proclaim it, that he had come into possession of all that Gallia Comata had had to possess. For Nepos adds, as well, that he was the first to have all the columns of his house made of nothing but solid marble, and that, too, marble of Carystus[3] or of Luna.[4]