Close to Ahirkapi
(Stable Gate) on the waterfront stood Bucoleon Palace (www.byzantium1200.com/boucoleon.ht) where there are remains of its walls and marble window frames set into the sea walls and can be seen if you head west towards the Catladikapi ( Cracked Gate ). In the 5th century the palace actually faced the Bucoleon harbour that served the Great Palace and the window frames you see are the last of its remnants.
The palace name was taken from the Greek words “bull” and “lion” as statues of these animals adorned the palace. Emperor Justinian had the palace restored and Emperor Theophilus, in the 9th century, expanded the building adding a balcony facing the sea. In 1204 during the Fourth Crusades, Boniface of Montferrat
seized the palace and then went on to marry Princess Margaret of Hungary who was a refugee there. After the Byzantine
monarchy was restored in 1261 the palace was abandoned in favour of Blanchernae Palace at Ayvansaray
and by the time the Ottomans arrived in 1453 the building was in complete ruins and in 1873 it was fully dismantled to make way for the railway line.
The Cracked Gate is believed to have been named because of damage it sustained in an earthquake in 1532 and it appears to have once led from Bucoleon harbour to the Great Palace.