The mosque and surrounding complex is thought to have been built by Sinan the Elder between 1463-1470. About the architect very little is known. The building we see today was built after the complex was destroyed on 22 May 1766 during an earthquake. On a different plan the reconstruction, under Sultan Mustafa II, was completed in 1771.

The full name of architect Mimar Atik Sinan (not the great Sinan, but an earlier namesake) was Sinaüddin Yusuf bin Abdullah; he died in 1471, shortly after he finished the Fatih Camii. He was also the architect of the Mahmut Paşa Mosque (1463), which was Istanbul’s first Turkish mosque.

Correspondent: J.M.Criel, Antwerpen.
Sources: ‘Türkiye Tarihi Yerler Kılavuzu’ – M.Orhan Bayrak, Inkılâp Kitabevi, Istanbul, 1994 & Vikipedia.

To see what the forerunner of the mosque, i.e. a church, looked like check Church of the Apostles.