WARNING - Distressing content
A man who fathered at least six children with one of his own daughters has been accused of systematic rape and sexual abuse of his two children, a Welsh court has heard.
The Welsh father is said to have groomed his children, forcing them to perform sexual acts on him by "brainwashing" them and creating "a false world", using manipulation methods.
The defendant, who cannot be named to protect the identity of his alleged victims, faces 36 rape charges, which he denies.
Prosecution John Hipkin told the jury the defendant "systematically controlled, groomed, and brainwashed" his victims "so their will was completely over-ridden by him".