Murad III, but was altered when the Circumcision Room was added. This arcade may have been built on the site of the Temple of Poseidon that was transformed before the 10th century into the Church of St. Menas. The Privy Chamber was converted into an accommodation for the officials of the Mantle of Felicity in the second half of the 19th century by adding a vault to the colonnades of the Privy Chamber in the Enderun Courtyard. Harem The Imperial Harem (Harem-i Hümayûn) occupied one of the sections of the private apartments of the sultan; it contained more than 400 rooms. The harem was home to the sultan's mother, the Valide sultan; the concubines and wives of the sultan; and the rest of his family, including children; and their servants. The harem consists of a series of buildings and structures, connected through hallways and courtyards. Every service team and hierarchical group residing in the harem had its own living space clustered around a courtyard. The number of rooms is not determined, with probably over 100, of which only a few are open to the public. These apartments (Daires) were occupied respectively by the harem eunuchs, the Chief Harem Eunuch (Darüssaade Ağası), the concubines, the queen mother, the sultan's consorts, the princes and the favourites. There was no trespassing beyond the gates of the harem, except for the sultan, the queen mother, the sultan's consorts and favourites, the princes and the concubines as well as the eunuchs guarding the harem. The harem wing was only added at the end of the 16th century. Many of the rooms and features in the Harem were designed by Mimar Sinan. The harem section opens into the Second Courtyard (Divan Meydanı), which the Gate of Carriages (Arabalar Kapısı) also opens to. The structures expanded over time towards the Golden Horn side and evolved into a huge complex. The buildings added to this complex from its initial date of construction in the 15th century to the early 19th century capture the stylistic development of palace design and decoration. Parts of the harem were redecorated under the sultans Mahmud I and Osman III in an Italian-inspired Ottoman Baroque style. These decorations contrast with those of the Ottoman classical age. Gate of Carts/Domed Cupboard Chamber The entrance gate from the Second Courtyard is the Gate of Carts (Arabalar Kapısı), which leads into the Domed Cupboard Room (Dolaplı Kubbe).