Prince Philip would have told the Queen to commit to fewer engagements, a royal expert has claimed, after it emerged the monarch made an overnight hospital stay this week.Royal biographer Angela Levin said that the Duke of Edinburgh, who died at the ripe old age of 99 back in April, would have likely taken a “bit of control” over the worrying situation and advised her to cut down on her duties if he was still around.Ms Levin suggested the Duke of Edinburgh would have said something like: "Look, stop it, don't go to so many engagements and relax a bit.”The 95-year-old monarch was taken to King Edward VII’s Hospital in London on Wednesday afternoon for “preliminary investigations” after experiencing a light non-Covid illness, and as a result.