[Petronski]

Mary is the mother of the human nature, not the Divine one.

This is the Nestorian heresy.

[fortheDeclaration]

[Mary is the mother of the human nature, not the Divine one.]

This is the Nestorian heresy.

No, the Nestorian heresy is saying that Christ was two persons.

Nestorianism claimed that Jesus was host to two separate persons, that of the son of god and that of a mortal man. It was as such a direct response to Apollinarianism.

http://www.roman-empire.net/religion/heresy.html

Christ had two natures but was one Person.