Edited sentence: " William was later examined by haematologists at Addenbrookes hospital in Cambridge and also by a Professor Ishihara in Tokyo, both of whom also concluded he was suffering from variegate porphyria in remission.Although he was aware of the theory of the royal family's history of porphyria then being proposed by Professor Ida Macalpine and Dr Richard Hunter  he stated he "tried not to let it influence him...with all the symptoms, he was left with little option but to diagnose the Prince's condition as porphyria.Bellringer tentatively diagnosed porphyria and prescribed him sunblock cream and gave him a medical warning card regarding the need to avoid certain medications.He'd subsequently noticed his skin was prone to a blistering rash, particularly on exposure to sunshine.Henry Bellringer, at the request of the Prince's mother, Princess Alice, Duchess of Gloucester.Shortly before tranfering to Tokyo in August 1968, William was examined by an RAF physician, Dr.The sourcing of this information added credence to the theory - first proposed by Professor Macalpine in the late 1960s - that porphyria was the source of the ill-health of both Mary, Queen of Scots (an ancestor of his mother) and of George III and that it had been inherited by some members of the Royal Families of Great Britain, Prussia and several minor German dukedoms and principalities.William told the doctor that he'd suffered from an illness of unknown aetiology, with fever and cutaneous hepatic symptoms, beginning in December 1965 and lasting several months