Prince John of the United Kingdom

Prince John (John Charles Francis; 12 July 1905 – 18 January 1919) was the fifth son and youngest of the six children of King George V and Queen Mary. At the time of his birth, his father was heir apparent to John's grandfather Edward VII. In 1910, John's father succeeded to the throne upon Edward VII's death, and John became fifth in the line of succession to the British throne.

In 1909, it was discovered that John had epilepsy. In 1916, as his condition deteriorated, he was sent to live at Sandringham House and kept away from the public eye. There, he was cared for by his governess, Charlotte "Lala" Bill, and befriended local children whom his mother had gathered to be his playmates. He died at Sandringham in 1919 after a severe seizure, and was buried at nearby St Mary Magdalene Church. His illness was disclosed to the wider public only after his death.

John's seclusion was subsequently brought forward as evidence of the royal family's inhumanity. However, contrary to the belief that he was hidden from an early age, John was a fully-fledged member of the family for most of his life, appearing frequently in public until after his eleventh birthday, when his condition became severe. Provided by Wikipedia