The unidentified author (Pseudo John Chrysostom) of the fifth- or sixth-century Opus Imperfectum in Matthaeum, Homily 2.2 (Patrologia Graeca 56:637–638) gives this number, probably on the basis of an apocryphal gospel attributed to Seth. This Syrian tradition had a parallel in parts of the Armenian Church. Also see the seventh- or eighth-century Chronicle of Zuqnin in which 12 magi are described as seeing different faces in the star, each a different age. Leo’s enumeration appears in Sermon 31.1, 36.1.