Delon’s sons believe their sister is seeking to manipulate their father and control his life. Since Delon’s stroke in 2019, he has allegedly been in a frail state of health and his sons say their sister has taken advantage of this to persuade him to move to Switzerland. For tax reasons, such a move is expected to enhance her share of the inheritance. The sons contend their father’s wellbeing is better served by remaining at his home in Douchy in France’s Loire region, which they claim is what he wants.