By Sarah Mills LONDON (Reuters) – Since ascending the throne 70 years ago, Britain’s Queen Elizabeth has become one of the world’s most famous figures. With much of her life documented, Reuters spoke to several royal experts to ask them what little known facts or anecdotes they knew about the 96-year-old monarch. Below are their quotes edited for length and clarity. * The queen has a “delightful sense of humour” “We all saw a different side with the Queen… when she went along with that James Bond spoof… for the opening of the London Olympics,” royal biographer Penny Junor said. In a short,…