Egeria, the Nymph or Camena from whom, according to the legend, King Numa received the ritual of public worship which he established in Rome. The grove where Numa met his mistress to receive her instructions was dedicated by him to the Camene. Roman legends speak of two groves dedicated to Egeria—one near Aricia, the other before the Porta Capena at Rome, where the grotto of Egeria is still shown.
Egeria
Chambers's Encyclopaedia, Volume 4: Dionysius to Friction, p. 228
Source scan(s): p. 0237