Descendants of Cain

Descendants of Cain:
 * according to Genesis 4:17-24:
 * Enoch,
 * Irad,
 * Mehujael,
 * Methushael,
 * Lamech,
 * Jabal/Jubal/Tubal-cain
 * in Beowulf: Grendel, Grendel's mother