Very interesting article from the UK Guardian
Peter the Wild Boy's condition revealed 200 years after his death
Feral German child who was kept as a pet in George I's court had Pitt-Hopkins syndrome, research into portrait suggests
The condition that affected Peter the Wild Boy, a feral child found abandoned in a German forest and kept as a pet at the courts of George I and II, has been identified more than 200 years after his death.
Peter's charming smile, seen in his portrait painted in the 1720s by William Kent on the king's grand staircase at Kensington Palace, was the vital clue.
Lucy Worsley, the historian at Historic Royal Palaces who has been researching Peter's strange life, suspected from contemporary accounts that he was autistic.
Read more at www.guardian.co.uk
She showed the portrait and gave the description of his physical characteristics and odd habits to Phil Beale, professor of genetics at the Institute of Child Health.