The third column on the left, of antique pink granite from Aswan and white marble, has a graffito E CUBICULO AUG[USTORUM] carved into it. This inscription refers to the imperial chamberlain, one of the emperor's closest attendants; but it was translated in the twelfth century as "from the bedchamber of Augustus" and was thus linked with his dream and the vision of the Aracoeli."