The council was held in Constaninople
The Second Council of Constantinople was the last phase of the attempt by Emperor Justinian I to ease tensions in the East with the remnants of the Monophysite movement, which was declared heretical at the Council of Chalcedon in 451 over the question of whether Christ had "one nature" or two.
The pope and the emperor were the more notable roles in the council
At the end of 543 or the beginning of 544, Emperor Justinian issued an edict in which the supposedly Nestorian Three Chapters were officially condemned. His aim was to encourage the Miaphysites the more moderate faction of those Christians who insisted on one nature in Christ to accept the decisions of the Council of Chalcedon and thus end the strife that had long plagued the empire over this issue.
The council issued 11 edicts or laws iv listed some below they were mostly made to prevent heresy
If anyone shall not call… Mary the Mother of God… believing that she bare only a simple man and that God the word was not incarnate of her… let him be anathema.
If anyone using the expression, “in two natures” …so as to designate by that expression a difference of the natures of which an ineffable union is unconfusedly made… let him be anathema.
If anyone uses the expression “of two natures” …and shall not so understand… that of the divine and human nature there was made an hypostatic union… let him be anathema…
If anyone shall take the expression, "Christ ought to be worshiped in his two natures," in the sense that he wishes to introduce thus two adorations… let him be anathema.
If anyone does not confess that our Lord Jesus Christ, who was crucified in the flesh, is true God and the Lord of Glory and one of the Holy Trinity: Let him be anathema.
the decisions of the council were quickly enforced throughout the East, and those who refused to endorse the council were removed from their posts and banished. The hoped-for reconciliation of the Monophysites and Chalcedonians however did not follow.
Aftermath and legacy
The original Greek acts of the council are lost, but there is an old Latin version.