Council of Chalcedon (451) — Definition of Faith

Council of Chalcedon (451) — Definition of Faith — English translation from Norman P. Tanner (ed.), Decrees of the Ecumenical Councils, as posted at papalencyclicals.net (official text, quoted at the cited paragraph)

So, following the saintly fathers, we all with one voice teach the confession of one and the same Son, our Lord Jesus Christ: the same perfect in divinity and perfect in humanity, the same truly God and truly man, of a rational soul and a body; consubstantial with the Father as regards his divinity, and the same consubstantial with us as regards his humanity; like us in all respects except for sin; begotten before the ages from the Father as regards his divinity, and in the last days the same for us and for our salvation from Mary, the virgin God-bearer as regards his humanity; one and the same Christ, Son, Lord, only-begotten, acknowledged in two natures which undergo no confusion, no change, no division, no separation; at no point was the difference between the natures taken away through the union, but rather the property of both natures is preserved and comes together into a single person and a single subsistent being; he is not parted or divided into two persons, but is one and the same only-begotten Son, God, Word, Lord Jesus Christ, just as the prophets taught from the beginning about him, and as the Lord Jesus Christ himself instructed us, and as the creed of the fathers handed it down to us.

The one Christ, 'born of the Virgin Mary, the Mother of God, as regards his humanity,' acknowledged in two natures — the council that acclaimed Leo's Tome.

This translation renders Theotokos as "Mary, the virgin God-bearer" rather than "the Virgin Mary, the Mother of God"; "one and the same Christ, Son, Lord, only-begotten, acknowledged in two natures" is verbatim.