"Primus de primis magnus Nicolaus ab imis, Erexit patrum decus ob renovare suorum. Stat patris Crescens matrisque Theodora nomen. Hoc culmen clarum caro de pignore gessit, Davidi tribuit qui pater exhibuit." It is believed, from the inscription, that the house was fortified by Nicholas, son of Crescentius and Theodora, who gave it to David, his son; that the Crescentius alluded to was son of the famous patrician who headed the populace against Otho III.; and that, three centuries later, the house may have belonged to Cola di Rienzi, a name which is, in fact, only popular language for Niccola Crescenzo. It is, however, known that Rienzi was not born in this house, but in a narrow street behind S. Tommaso, in the Rione alla Regola, where his father Lorenzo kept an inn, and his mother, Maddalena, gained her daily bread as a washerwoman and water-carrier--so were the Crescenzi fallen! Here is the entrance to a suspension-bridge, which joins the remaining arches of the _Ponte Rotto_, and leads to the Trastevere. On this site was the Pons Æmilius, begun, B.C. 180, by M. Æmilius Lepidus and Marcus Fulvius Nobilior, and finished by P. Scipio Africanus and L. Mummius, the censors, in B.C. 142. Hence the body of the Emperor Heliogabalus was thrown into the Tiber. The bridge has been three times rebuilt by different popes, but two of its arches were finally carried away in an inundation of 1598, and have never since been replaced. The existing remains, which only date from the time of Julius III., are highly picturesque. "Quand on a établi un pont en fil de fer, on lui a donné pour base les piles du Ponte-Rotto, élevé au moyen âge sur les fondements du Pons Palatinus, qui fut achevé sous la censure de Scipion l'Africain. Scipion l'Africain et un pont en fil de fer, voilà de ces contrastes qu'on ne trouve qu'à Rome."--_Ampère, Emp._ ii. 209. From this bridge is the best view of the Isola Tiberina and its bridges, and hence, also, the Temple of Vesta is seen to great advantage. Just below is the mouth of the Cloaca Maxima. "Quand du Ponte-Rotto on considère le triple cintre de l'ouverture par laquelle la Cloaca Maxima se déchargeait dans le Tibre, on a devant les yeux un monument qui rappelle beaucoup de grandeur et beaucoup d'oppression. Ce monument extraordinaire est une page importante de l'histoire romaine. Il est à la fois la suprême expression de la puissance des rois étrusques et le signe avant-coureur de leur chute. L'on croit voir l'arc triomphal de la royauté par où devait entrer la république."--_Ampère, Hist. Rom._ ii. 233. In the bed of the river a little lower down may be seen, at low water, some massive fragments of masonry. Here stood the _Pons Sublicius_, the oldest bridge in Rome, built by Ancus Martius (B.C. 639), on which Horatius Cocles and his two companions "kept the bridge" against the Etruscan army of Lars Porsenna, till--