This place was built as a vestibule to the harem in 1587 by Murad III. The harem treasury worked here. In its cupboards, records of deeds of trust were kept, administered by the Chief Harem Eunuch. This treasury stored money from the pious foundations of the harem and other foundations, and financial records of the sultans and the imperial family. Hall of the Ablution Fountain The Hall of the Ablution Fountain, also known as "Sofa with Fountain" (Şadirvanli Sofa), was renovated after the Harem fire of 1666. This second great fire took place on 24 July 1665. This space was an entrance hall into the harem, guarded by the harem eunuchs. The Büyük Biniş and the Şal Kapısı, which connected the Harem, the Privy Garden, the Mosque of the Harem Eunuchs and the Tower of Justice from where the sultan watched the deliberations of the Imperial Council, led to this place. The walls are revetted with 17th-century Kütahya tiles. The horse block in front of the mosque served the sultan to mount his horse and the sitting benches were for the guards. The fountain that gives the space its name was moved and is now in the pool of the Privy Chamber of Murad III. On the left is the small mosque of the black eunuchs. The tiles in watery green, dirty white and middle blue all date from the 17th century (reign of Mehmed IV). Their design is of a high artistic level but the execution is of minor quality compared to 16th-century tiles, and the paint on these tiles blurs. Courtyard of the Eunuchs Another door leads to the Courtyard of the (Black) Eunuchs (Harem Ağaları Taşlığı), with their apartments on the left side. At the end of the court is the apartment of the black chief eunuch (Kızlar Ağası), the fourth high-ranking official in the official protocol. In between is the school for the imperial princes, with precious tiles from the 17th and 18th centuries and gilded wainscoting. At the end of the court is the main gate to the harem (Cümle Kapısi). The narrow corridor on the left side leads to the apartments of the odalisques (white slaves given as a gift to the sultan). Many of the eunuchs’ quarters face this courtyard, which is the first one of the Harem, since they also acted as guards under the command of the Chief Harem Eunuch. The