It all started with him and I am not sure why they even try to save him.
Sven was kind of ok as he is the heir and received enough respect, though he lacked parental love.
Rubia was bullied and neglected to the point of psychological trauma and death.
Dianne was twisted and blamed Rubia for her lack of father’s love (though she had a caring mother).
The 3rd wife took out her frustrations on an innocent child. Though she should have expected lack of love from a guy who married twice before