Pausanias: The cities of Phocis were captured and razed to the ground. The tale of them was Lilaea, Hyampolis, Anticyra, Parapotamii, Panopeus and Daulis. These cities were distinguished in days of old, especially because of the poetry of Homer.....About twenty-seven stades distant from Panopeus is Daulis. The men there are few in number, but for size and strength no Phocians are more renowned even to this day. They say that the name of the city is derived from Daulis, a nymph, the daughter of the Cephisus. Others say that the place, on which the city was built, was wooded, and that such shaggy places （dasea） were called daula by the ancients. For this reason, they say, Aeschylus called the beard of Glaucus of Anthedon hypene daulos.
See:
- The Princeton encyclopedia of classical sites. Stillwell, Richard. MacDonald, William L. McAlister, Marian Holland. Princeton, N.J. Princeton University Press. 1976, sv. DAULIS or Daulia, Phokis, Greece
- Pausanias, Description of Greece X.