David and Louise Turpin were arrested in January 2018 when one of their daughters escaped the house in the city of Perris.
They've pleaded guilty to torturing and imprisoning some of their 13 children.
The children were eventually found by police in a badly malnourished state.
Evidence also suggests they were abused.
The age of the kids ranged from two to 29 at the time they were rescued.

Philippines confirms visit by alleged Bondi gunmen amid terrorism concerns
Israeli forces kill Palestinian teen in West Bank, health ministry says
Trump sues BBC for defamation, seeks up to $10 billion in damages
FBI foils 'terror plot' targeting Los Angeles
