For 10 points, name this husband of Theodora and Byzantine emperor who built the Hagia Sophia.
This man signed the Eternal Peace with Khosrau I of the Sassanid Empire. This ruler's finances were managed by Peter Barsymes and John the Cappadocian ("kap-uh-doh-shuhn"). This ruler was said to be able to make his head disappear in Procopius' ("proh-koh-pee-uhs") Secret History. The scholar Tribonian compiled a(*) law code named for this ruler. This ruler's general Belisarius ("bel-uh-sair-ee-uhs") crushed the Blue and Green factions of chariot racing fans during the Nika riots. For 10 points, name this husband of Theodora and Byzantine emperor who built the Hagia Sophia.
This man signed the Eternal Peace with Khosrau I of the Sassanid Empire.
Justinian I [Justinian the Great]