<P> Koca Mi'mâr Sinân Âğâ ( Ottoman Turkish : معمار سينان ‎ , `` Sinan Agha the Grand Architect '' ; Modern Turkish : Mimar Sinan , pronounced ( miːˈmaːɾ siˈnan ) , `` Sinan the Architect '' ) ( c. 1488 / 1490 -- July 17 , 1588 ) was the chief Ottoman architect ( Turkish : mimar ) and civil engineer for Sultans Suleiman the Magnificent , Selim II , and Murad III . He was responsible for the construction of more than 300 major structures and other more modest projects , such as schools . His apprentices would later design the Sultan Ahmed Mosque in Istanbul , Stari Most in Mostar , and help design the Taj Mahal in the Mughal Empire . </P>
who was the greatest builder under the ottomans and the designer of 312 public buildings
Koca Mi'mâr Sinân Âğâ