Notice on site: Firdevs Pasha mosque (also called Architect Sinan mosque). Built in 1561 by Firdevs Pasha, governor of Isparta, in the style of Architect Sinan during the reign of Suleiman the Magnificent. The square-planned and single domed mosque has a five-domed last congregation place (?) on the north and a minaret in the northwestern corner. On the north façade of the mosque there is a cross vault in the middle with a five-division last congregation place, which is covered with domes that have octagonal drums connected to each side with penditives. The roofing system is supported on the façade by pointed arches resting on six columns. The mosque has an entrance on the north side. The mosque has a foundation charter, which is dated 1565 (973 in Muslim calendar). It also takes place among the works of Architect Sinan, for it is mentioned in Tezkiret-ül Bünyan, Tezkiret-ül Ebniye and Thuhfet-ül Mimarin (the sources that consist Sinan’s biography and works).

From toher source: On the picture: The mosque seen from the north.
The building was restored in 1783, and underwent some more repairs after an earthquake in 1914.
The mention on the notice on site of a ‘last congregation place’ is the literal translation of ‘son cemaat yeri’, which in less cryptical terms can be described as the ‘area for those who came late’, where worshippers who reached the mosque late or at the last moment, will gather and fulfill their prayer duty.

Correspondent: J.M.Criel, Antwerpen.
Source: ‘Türkye Tarihi Yerler Kılavuzu’ – M.Orhan Bayrak, Inkılâp Kitabevi, Istanbul, 1994.