Habeşî Mehmed Ağa, chief black eunuch of the palace under Murad III, had his complex at Çarşamba in Fatih built by the architect Davud Ağa; the mosque went up in 1585 and the endowment deed is dated February 1591. The complex originally held a mosque, a dervish lodge, this tomb, a double bath, a medrese and two fountains, though the medrese and the lodge have not survived.

The tomb stands to the south-east of the mosque and is a plain building with a single cenotaph in it. It is of cut stone on a rectangular plan, its corners softened with round columns, and its plain bow-arched door is framed by a rectangular moulding. Two rows of windows light it — jambed and iron-barred below, pointed-arched with painted glass above — and the dome is reached through pendentives from an octagonal drum. The interior is whitewashed now, but it once carried painted decoration. The trace of an arch at the right-hand corner of the front suggests there was formerly a portico along this side of the mosque.

The mosque itself is the reason most people come. Its square prayer hall, with the mihrab side projecting, carries a single dome on eight wall piers and pointed arches, ringed by five half-domes at the four corners and over the mihrab projection, and the eight-part structure is carried up outside in eight round weight turrets around the drum. In front of it a five-bay porch of pendentive domes rests on six marble columns with muqarnas capitals, and a marble portal with slender colonnettes and muqarnas opens into the hall; inside, above the portal, a balcony on stone corbels has an openwork marble balustrade of geometric interlace, with two wooden galleries on either side of the entrance reached by their own stairs.

When to go

Climate
Across İstanbul as a whole, monthly mean temperatures run from 6.8 °C in January to 24.7 °C in August; the mean stays between 15 and 25 °C in May, June, July, August, September and October; rainfall is heaviest in December (99 mm) and lightest in July (22 mm). Long-term means for 1950-2025 from the Turkish State Meteorological Service (MGM).Checked: September 22, 2026