Contract Annulment for Mistake Regarding Party Identity

A party, having entered into a contract based on a mistake regarding the identity of the person with whom the agreement was made, sought annulment, arguing that the identity was a determining factor for their consent. The court rejected the appeal, holding that while an error concerning the identity of the contracting party can serve as grounds for nullity under the relevant civil code provisions, the appellant failed to demonstrate that the mistake, which involved a description of the counterparty's profession and not a fundamental error regarding their identity, was essential to their consent to the agreement.