Cronus was the youngest son of Uranus (Heaven) and Gaia (Mother
Earth), thus he belonged to the first divine generation.
He, with the help of his mother, ovethrew Uranus, to take his place
in Heaven. As soon as he became ruler of the world Cronus married his own
sister Rhea. Since it was foretold to him that he would be dethroned by
one his children, he devoured them all in turn as soon as they were born:
Hestia (Vesta), Demeter (Ceres), Hera (Juno), Hades (Pluto), and Poseidon
(Neptune). Only Zeus (Jupiter) was saved by his mother, Rhea, to
later fulfill the prophecy.
In Ancient Rome Cronus was identified with Saturn.
Francisco de Goya. Saturn
Devouring One of His Chidren.