This ruler’s construction projects were recounted in De Aedificiis (“day EYE-di-FIK-ee-ees”). This ruler’s (10[1])marriage to a Miaphysite may have led him to condemn the Chalcedonian (“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 (10[1])of Miletus after its predecessor burned down during the Nika Riots. This emperor (10[1])reformed law in the Corpus Juris Civilis, (10[1])and sent Belisarius to reconquer portions of the Western Roman Empire. For 10 points, name this Byzantine Emperor, the husband of Theodora (10[2])and constructor of the Hagia Sophia. ■END■ (0[2])