The Patriarch Constantius[954] identified Balouk Haneh Kapoussi with the Postern of Michael the Protovestarius, mentioned once in Byzantine history. That was the gate by which Constantine Ducas, in 913, entered the city to join the conspirators who sought to place him upon the throne instead of Constantine Porphyrogenitus, then a minor under the tutelage of his uncle and colleague, Alexander.[955] The fact that Constantine Ducas reached the gate by sea without being immediately discovered, and that he was then able to reach the Hippodrome quickly, is in favour of the view that the entrance stood upon the Sea of Marmora. But if, as seems probable, the entrance at Balouk Haneh Kapoussi was within the limits of the Great Palace, it cannot be the Parapylis of Michael Protovestarius; for that postern did not conduct Ducas into the grounds of the Imperial residence, but to the private house of his father-in-law Gregoras, without the palace precincts. Possibly one of the small gates between the Lighthouse and Indjili Kiosk represents the postern. The ancient name of Ahour Kapoussi is not known. The Patriarch Constantius,[956] it is true, identifies it with the Gate of the Hodegetria. But the Gate of the Hodegetria was remarkable for its small size, and stood outside the enclosure of the Great Palace; whereas Ahour Kapoussi was within the palace grounds, and is of ordinary dimensions. Equally erroneous is the view of Labarte[957] that the recess in the shore at this point marks the site of the Port of the Bucoleon, the harbour attached to the Imperial palace. Doubtless, the small bay before Ahour Kapoussi, as its position implies, served the convenience of the Byzantine Court, but it was not the Port of Bucoleon strictly so called. That harbour, we shall find, lay further west at Tchatlady Kapou, the gate next in order. The splendid marble stables erected by Michael III. at the Tzycanisterion[958] were in this vicinity. May this gate not have been at their service? It would not be strange if the Sultan’s Mews were built upon the site of the Mews of his Byzantine predecessors. Passing next to Tchatlady Kapou (the Broken or Cracked Gate), we reach the entrance attached, as already intimated, to the Imperial Port of the Bucoleon. Its Byzantine name has not been preserved, but in the time of Gyllius[959] it was called the Gate of the Lion (Porta Leonis), after the marble figure of a lion near the entrance. Upon the maps of Constantinople, made in the sixteenth century, it is styled “Porta liona della riva.” Leunclavius names it the Gate of the Bears (Πόρτα ταῖς Ἀρκούδαις), a designation derived, doubtless, from the figures of bears which once adorned the adjoining quay.[960]