In the Byzantian era, there were two groups of palaces: Aya Sofia and Ayvansaray. The most important one was Great Palace. The Great Palace of Byzantium was a complex of several palaces, pavilions, churches, baths and administrative buildings constructed one of the hills of Constantinopolis.
The Bucoleon Palace had five hundred rooms
The Bucoleon Palace one of the Byzantine palaces in the city and was built by Theodosius II in the 5th century. The palace is located on the shore of the Marmara Sea. The name Bucoleon was probably attributed after the end of the 6th century under Justinian I, when the small harbour in front of the palace, was constructed. Emperor Theophilos rebuilt and expanded the palace, adding a large facade on top of the seaward walls. The ruins suggest a balcony looking out to the sea was present, accessible through three marble-framed doorways, still visible today. The Bucoleon Palace on the coast entailed Porfir Köşkü, where all the emperors were born. The Bucoleon Palace was enormous. It had five hundred rooms, that were all connected to each other.