She preferred instead to direct her ladies to act as intermediaries to other members of the household, particularly men. These messages often concerned minor breaches in etiquette; hence Churchill was unpopular, though still respected. However, Reynolds does not believe her role extended beyond the royal household. In 1858, Queen Victoria asked Churchill to accompany her eldest daughter Princess Victoria to Berlin, upon her marriage to Prince Frederick of Prussia. The historian Helen Rappaport attributes this newly assigned role to the Queen "no doubt [being] impress[ed] with Churchill's discretion and dependability". The Queen wished that Churchill help Vicky acclimatise to life in the Kronprinzenpalais, and to send back her observations of even the smallest details of life there. Churchill stayed with the princess for several weeks, reporting back to the queen on conditions. One source of displeasure was the hot temperature of the rooms, which Churchill described as "dreadful". Despite Churchill's long service and closeness to the queen, Victoria could be ruthless and demanding of her servant. Rappaport writes of Churchill's personality, "[She] proved to be adept at self-effacement; she performed her duties with a combination of dignity, good humour, and vigilance". Churchill regularly travelled with Queen Victoria on her Scottish voyages, particularly to Balmoral Castle; these trips were often undertaken in the face of harsh weather conditions, with Jane venturing outside for fresh air with the Queen. Members of the household endured cold rooms at the Scottish castle. One trip involved Victoria and Albert journeying in disguise to Grantown – the couple referred to themselves as "Lord and Lady Churchill", while Jane Churchill accompanied them as "Miss Spencer", with a small party. At Balmoral, Churchill frequently read to the queen from novels such as Jane Austen's Pride and Prejudice and George Eliot's The Mill on the Floss. In February 1872, Churchill was present on a drive from Regent's Park with the Queen when they were confronted by Arthur O'Connor, a teenage Irish nationalist. John Brown noticed the boy and prevented him from coming near the monarch. Churchill suffered from heart problems for several years, and died on Christmas Eve 1900 of heart failure in her sleep while staying at Osborne House on the Isle of Wight. She was found the following morning in her bed. Her body was transported to the mainland on 28 December, and was buried on 29 December 1900 at Finstock, Oxfordshire. Queen Victoria's personal physician, Sir