In 
Greek mythology, 
Tityas (also spelled 
Tityus) was a giant, the son of 
Elara, one of 
Zeus' lovers.  He hid her from his wife, 
Hera, by placing her deep beneath the earth. This was where she gave birth to Tityas, who is sometimes said to be the son of Elara and 
Gaia, the earth goddess, for this reason.
All Wikipedia text 
is available under the 
terms of the GNU Free Documentation License