Michael II (Greek:Μιχαήλ Β', Mikhaēl II), (770- 829), surnamed the Amorian (ὁ ἐξ Ἀμορίου) or the Stammerer (ὁ Τραυλός or ὁ Ψελλός), reigned as Byzantine Emperor from December 820 to his death on 2 October 829, the first ruler of the Phrygian or Amorian dynasty.