Who is the only person to recognize Ulyssess when he returns to Ithaca in the novel, The Adventures of Ulysses?

Eurycleia was Ulysses' nurse when he was a child. When Ulysses, dressed as a beggar, encounters her in the hallway outside of Penelope's room, Eurycleia is very happy to see her lord; she is the only person who recognizes Ulysses in his disguise.