Complex sentence: Heydar Gholi Khan Ghiaï-Chamlou was an Iranian architecture who graduated from the École des Beaux-Arts in 1952, and was known as a pioneer of modern architecture in Iran.
Split into simpler sentences: Heydar Gholi Khan Ghiaï-Chamlou was an Iranian architect. He graduated from the École des Beaux-Arts in 1952, and was known as a pioneer of modern architecture in Iran.