For 10 points, name this great 6th-century Byzantine emperor.
Two of this ruler's generals defeated King Totila at the Battle of Taginae and King Gelimer at the Battle of Tricamarum. He supported the former general, a eunuch named Narses who distrusted John the Cappadocian, while mostly ignoring the latter general [*] Belisarius; he sent those two men to stop Hypatius and put down rowdy chariot-racing fans in the Nika riots. This husband of Theodora issued the Corpus Juris Civilis, a Christian law code for his nation. For 10 points, name this great 6th-century Byzantine emperor.
Two of this ruler's generals defeated King Totila at the Battle of Taginae and King Gelimer at the Battle of Tricamarum.
{Justinian I} [or {Justinian} the Great]