This ruler’s construction projects were recounted in De Aedificiis (“day EYE-di-FIK-ee-ees”). This ruler’s marriage to a Miaphysite may have led him to condemn the Chalcedonian (10[1])(“KAL-suh-DON-ee-an”) Three-Chapters, sparking a feud with Pope Vigilius. In the Treaty of Eternal Peace, this ruler agreed to pay 11,000 pounds of gold to Sassanid emperor Khosrau I (“CAUSE-row the first”). Under this ruler, a building was designed by Isidore of Miletus after its predecessor (10[1])burned down during the Nika Riots. (10[3])This emperor reformed law in the Corpus Juris Civilis, and sent Belisarius to reconquer (10[1])portions of the (10[1])Western Roman Empire. (10[1])For 10 points, (10[1])name this Byzantine Emperor, the husband of Theodora and constructor of the Hagia Sophia. ■END■