This is the Muradiye mosque, by the greatest Turkish architect, Sinan. It is one of his last works, from 1582-1585, who built it for Murat III.

For a change I first circle the mosque through the garden, then enter.

Architect: Mimar Sinan, by proxy, but he may have visited the site on his return from the Pilgrimage to Mecca.
His first deputy, Mahmut Ağa, died and was succeeded by Mehmet Ağa, who built the complex of Ahmet I (the ‘Blue Mosque’ and its annexes) in Istanbul.

On the picture: (to the right) the main entrance under the northern gallery, which is also the ‘son cemaat yeri’ and (to the left) a secondary entrance to the prayer hall.

Most cami (= Friday mosque) have a ‘son cemaat yeri’ (= ‘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. This area can be placed under the porch on the north side of the mosque, or in a lobby between the entrance and the prayer hall.

Sources: ‘Islamic Architecture: Ottoman Turkey’ (Godfrey Goodwin) – London 1977
& Website of ‘Manisa Il Kültür ve Turizm Müdürlüğü’ .