From these facts it is clear that the Wall of Constantine, in crossing the Seventh Hill, passed very near Isa Kapoussi Mesdjidi, a conclusion in accordance with the position already assigned to the Exokionion. The column outside the Ancient Gate was probably that which gave name to the district. Nowhere could a column bearing the statue of the city’s founder stand more appropriately than before this splendid entrance. (_c_) Another landmark of the course of the Constantinian ramparts in this part of the city were the Trojan Porticoes (τρῳαδήσιοι ἔμβολοι),[72] which stood so near the wall that it was sometimes named after them, the Trojan wall (τῶν τειχῶν τῶν Τρῳαδησίων).[73] From their situation in the Twelfth Region,[74] it is probable that they lined the street leading from the Porta Aurea into the city. They were evidently of some architectural importance, and are mentioned on more than one occasion as having been damaged by fire or earthquake.[75] The reason for their name is a matter of conjecture, and no trace of them remains. (_d_) Nothing definite regarding the course of the Constantinian Wall can be inferred from the statement that it ran beside the Monastery of St. Dius and the Convent of Icasia, seeing the situation of these establishments cannot be determined more exactly than that they were found near each other, somewhere on the Seventh Hill. The former, ascribed to the time of Theodosius I., is mentioned by Antony of Novgorod in close connection with the Church of St. Mokius and the Church of St. Luke.[76] The Convent of Icasia was founded by the beautiful and accomplished lady of that name,[77] whom the Emperor Theophilus declined to choose for his bride because she disputed the correctness of his ungracious remark that women were the source of evil. (_e_) The Cistern of Aspar, which, according to the _Paschal Chronicle_,[78] was situated near the ancient city wall, is the old Byzantine reservoir (Tchoukour Bostan), on the right of the street conducting from the Mosque of Sultan Mehemet to the Gate of Adrianople in the Theodosian walls. This is clear from the following evidence. The cistern in question was a very large one, and stood near the Monastery of Manuel,[79] which was founded by the distinguished general of that name in the reign of Theophilus. The church of the monastery is now the Mosque Kefelè Mesdjidi in the quarter of Salmak Tombruk, and a little to the east of it stands the Tchoukour Bostan mentioned above,[80] the only large Byzantine reservoir in the neighbourhood. This conclusion is again in harmony with the figures of Zosimus and the _Notitia_, which, it will be remembered, brought the line of the Constantinian Wall close to this point.