Today marks the centenary of the Death of Prince John, the Queen’s uncle and the youngest son of King George V and Queen Mary, who had epilepsy and spent the last years of his life at Wood Farm on the Sandringham Estate, now a retreat for the Duke of Edinburgh, where he passed away after a severe seizure on this day in 1919. To mark the occasion, we are featuring the documentary ‘Prince John: The Windsor’s Tragic Secret,’ though it must be said that it should be taken with a pinch of salt as Prince John was a public member of the Royal Family up until 1916, and only retired from public view as his condition degenerated.