Sedefkar Mehmed Agha

Sedefkar Mehmed Agha (c. 1540–1617) was an Ottoman architect and the last pupil of the master builder Mimar Sinan. Recruited through the devshirme in 1563, he spent twenty years working mother-of-pearl inlay, which earned him the name Sedefkar, before joining Sinan's architectural office.

In 1606 he was appointed chief imperial architect, and from 1609 to 1616 he built his masterpiece, the Sultan Ahmed Mosque in Istanbul, known as the Blue Mosque. He died there in 1617.