Persona Non Grata

Persona no Grata is a repressed Cristina Memory in Assassin's Creed: Brotherhood.

Description
Upon learning from Leonardo da Vinci that Cristina was attending the Carnevale in Venice, with her husband Manfredo. Ezio wrote a fake note to Cristina to meet him in an alleyway, pretending to be her husband. Upon locating Cristina with Eagle Vision, Ezio planted the letter on her and waited at the meeting point. Unaware of Ezio's identity because of his mask, Cristina kissed Ezio, wondering why her husband had suddenly become so romantic. However, when she discovered who he was, she angrily pushed him away, stating incredulously that she hadn't seen him in eight years. As Ezio attempted to explain himself, Cristina interrupted him by saying that she had loved him, and not her fiance all those years ago, yet he had abandoned her to be married. She coldly said that his chance had passed, and told him to never look for her again.

Source

 * Assassin's Creed: Brotherhood