 The Dowager Duchess of Marlborough moved with her dogs first to north Oxfordshire and later to the Grange Farm at Chacombe.She started retreating from the world and eventually became a complete nocturnal recluse surrounded by cats.By 1962, she had become mentally ill, much like her father and paternal grandmother, and was forcibly moved to St Andrew's Hospital, where she died in 1977, aged 96.