Actually, the Council of Chalcedon states that Christ has the two natures, fully human and fully divine together, unmixed. The controversy that arose from it possibly is due to a misunderstanding in terms. What one group called "nature" the other group called "essence."
Anyway, here is the link to Orthodoxwiki with articles on all seven councils as well as their hundreds of canons and the heresies as well as the saints found in Orthodoxy, et al.

• ( http link )
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