Sarkis Balyan

The Balyan family is a dynasty of famous Ottoman imperial architects of Armenian ethnicity, who designed and constructed numerous magnificent buildings like sultan palaces, kiosks, mosques, churches and various public buildings mostly in İstanbul for five generations in the 18th and 19th centuries. The nine reputed members of the family, who served six sultans in the course of almost a century, were responsible for the westernization of then capital city's architecture.
See more at Wikipedia.org...