The designation of the Palace of Bucoleon as “Chastel de Bouchelyon”[1055] is no evidence that Ville-Hardouin used the name in its restricted sense, as Labarte contends. For the Great Palace was within a fortified enclosure, and could therefore be styled a castle with perfect propriety, just as the same historian, for a similar reason, speaks of the Palace of Blachernæ as a “chastel.” Nor does the fact that the Marquis of Montferrat reached the Palace of Bucoleon by riding along the shore (“chevaucha tout le long du rivage, droit vers Bouchelion”)[1056] prove that the residence beside Tchatlady Kapou was the one he wished specially to secure. For the grounds of the Great Palace were thus accessible by a gate which stood at the eastern extremity of the Tzycanisterion, on the plain beside the Sea of Marmora, and which communicated with the quarter of the city near the head of the promontory. Two incidents in Byzantine history, cited by Labarte[1057] himself, establish the existence of such a gate, beyond contradiction. When Stephen and Constantine, the sons of the Emperor Romanus Lecapenus, deposed their father, in 944, and sent him to a monastery on the island of Proti,[1058] great fears were entertained in the city, that a similar, if not a worse, fate had befallen his associate upon the throne, the popular Constantine VII., Porphyrogenitus. The people, therefore, crowded about the palace to ascertain the truth, and were reassured that their favourite was safe by his appearance, with dishevelled hair, at the iron bars of the gate which stood at the end of the Tzycanisterion (“Ex ea parte qua Zucanistrii magnitudo portenditur, Constantinus crines solutus per cancellos caput exposuit.”) The existence of a gate at this point is, if possible, still clearer from the statement of Constantine Porphyrogenitus,[1059] that the Saracen ambassadors, after their audience of the emperor, left the palace grounds by descending to the Tzycanisterion, and mounting horse there. To approach the palace by that entrance evinced, therefore, no particular intention on the part of the Marquis of Montferrat to reach the buildings to which the name of Bucoleon strictly belonged. On the contrary, by that entrance one would reach the principal apartments of the Great Palace, sooner than the palaces beside the group of the Lion and the Bull, at Tchatlady Kapou. The Bucoleon is mentioned for the last time in Byzantine history, in connection with the events of the final fall of the city. “To Peter Guliano, consul of the Catalans, was entrusted,” says Phrantzes,[1060] “the defence of the quarter of the Bucoleon, and the districts as far as the neighbourhood of the Kontoscalion.” Footnote 989: Cedrenus, vol. ii. p. 292. Footnote 990: Anna Comn., iii. p. 137; Zonaras, xvi. c. xxviii. p. 131. Footnote 991: Bondelmontius’ Map. Footnote 992: William of Tyre, xx. c. xxiii. p. 983. Footnote 993: