Queen Elizabeth has become the world’s second-longest reigning modern monarch. The 96-year-old monarch – who recently celebrated her Platinum Jubilee – has overtaken King Bhumibol Adulyadej of Thailand, who reigned for 70 years and 126 days, between 1927 and 2016. However, the Queen – who is the longest-serving British monarch – remains some way behind Louis XIV of France, who reigned for 72 years and 110 days. The Queen has battled mobility issues in recent months, which forced her to miss a number of events during the Platinum Jubilee celebrations. Despite this, she was able to appear on the…