SIXTH CENTURY. Patriarch of Constantinople from 536 to 552, succeeding the deposed Anthimos. Menas unwaveringly condemned the heresy of the Monophysite* leaders and subscribed to Justinian's edict against the Origenists in 543. In 547 and again in 551 Pope Vigilius deposed him, but he remained firmly committed to Justinian's religious program. He conducted a council at Constantinople on assuming office in 536. The council's acts show that by this time eucharistic services in Constantinople customarily included the Constantinopolitan creed. Paradoxically, Monophysite initiative was responsible for this innovation.