forebears of herods

do forum-mavens have any theories re forebears of herod family ? We get antipater and cypros as parents of herod the great, but WHO came BEFORE them ? They burst out of the ages and zoom to notoriety. One doubts that antipater and cypros came from two clans who, for centuries and centuries, were total non--entities. We have to believe they came from lineages known for social or political or military prowess.

ONe or two chaps have averred that herod folks descended from benjaminite bela ... eisenman has st paul springing from bela - - ye olde concepts re st paul having kinship ties to herod folks