Nacimiento is found in the room left of the entrance of the Desecrated Cistern from Albero, and was added on the Stir of Dawn DLC/update. He is a giant cursed by the Miracle causing his face to get younger and younger as he ages. Nacimiento thus has the face of a child, and when The Penitent One first meets them, the face of an old man, which Nacimiento calls Ancient One, pulsing in his chest. According to Nacimiento, this face does not think and does not show any sign of emotion.

As the Penitent One brings the fourth quicksilver, the old man partially bursts out of Nacimiento's torso, causing him great pain. After all quicksilver is delivered, the old man finally detaches himself from Nacimiento, leaving behind a hole in his chest, leaving Nacimiento dead and the old man lying on the floor, breathing quietly