13. Elizabeth II
By NASA/Bill Ingalls – http://www.nasa.gov/centers/goddard/news/topstory/2007/queen_egress_8.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2694860
Elizabeth II was born April 21, 1926. As of 2016, she has reigned since 1952 as Queen of the United Kingdom, Canada, New Zealand, and Australia (and other smaller domains)
Throughout her reign, Elizabeth II has overseen a variety of constitutional changes as well as Africa’s decolonization.
Not only is she the longest living monarch in Britain, but she is also the oldest monarch in the world. Additionally, she has received high support and experienced intense popularity as queen.