Who recognized Odysseus after he had a interview with Penelope?

Odysseus was recognized by his old nurse, Eurycleia, after he had an interview with Penelope. She identified him by a distinctive scar on his leg, which he had received from a boar during a hunt in his youth. This moment marked a significant turning point in the story, as it confirmed his identity to someone who had cared for him since childhood. Eurycleia's recognition also underscored the themes of loyalty and the enduring bonds of family.