Prince François, Count of Clermont

[1] However, his mother had been infected with toxoplasmosis during her second and third pregnancies, and the pre-natal exposure left both Prince François and his younger sister, Princess Blanche, developmentally disabled.

François was about two or three months old, according to his father (then styled Count of Clermont as Orléanist heir apparent), before the family realized that he had a disability.

[1] When he was 13, his parents separated and François spent weekdays in a facility at Beaumont-sur-Oise and, from the early 1980s, in a L'Arche community, rejoining his mother and siblings at the Orléans estate in Dreux on weekends, while sometimes vacationing with his paternal grandmother at the Chateau d'Eu, where she taught him to walk when he was 4 or 5.

[1] In 1981, his grandfather, the Count of Paris, having declared Clermont deprived of his dynastic rights for an unauthorized civil remarriage after divorce, publicly announced that he would be succeeded as claimant to the French throne by Prince Jean, younger brother of François, in light of the latter's incapacity.

[1] In 2016, Jean declared that his father's appointment of a regency council was invalid and, having become his elder brother's legal guardian, promised to continue to care for him while also called for François "to be left in peace and not used".