More on Geryoneo from Infoplease:

• Geryoneo - Geryoneo A giant with three bodies; that is, Philip II. of Spain, master of three kingdoms. ...
• Dictionary of Phrase and Fable: G - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "G"
• Giants - Giants (g soft). (1) Of Greek mythology, sons of Tartaros and Ge. When they attempted to storm ...