Cronus

Cronus was the Father of Oskan Witchfather and the Lord Of Darkness. In "Last Battle Of The Icemark," he teamed up with Medea to try and take over the Earth and Heaven. However, during a battle with Oskan, he kills his son. Because of the curse the goddess had put on him, if his kind killed a family member, he himself would die, Cronus died as well.