Castleknock

• Castleknock is a village west of Phoenix Park. (Cf. Castleknock at Wikipedia, Castleknock at the FW Gazetteer)

• Castleknock Hill and Windmill Hill (now Mount Hybla) are identified with Finn Mac Cool's (and HCE's) two feet. The Sigla of Finnegans Wake 13n: "In the time of D'Alton, The History of the County of Dublin (Dublin, Hodges & Smith, 1838), p. 641, these were prominent, one crowned with a tower, the other with a castle.