"In 1987, it emerged that Katherine and Nerissa Bowes-Lyon had been incarcerated in the Royal Earlswood Mental Hospital in Surrey for 46 years. The two women, nieces of the Queen Mother, had never been visited by a member of the royal family."
When Nerissa Bowes-Lyon died in 1986, she was buried in Redhill cemetery. Her grave was marked with a plastic tag bearing a serial number and her name.
When the story came to light 20 years ago the Sun (owned by Blair supporter Rupert Murdoch) had a disgusting headline along the lines of "Queen's cousin found in madhouse" and made a joke of the whole thing.