This year, 2016, Queen Elisabeth will turn 90. She has seen 12 Prime Ministers come and gone, she is the Head of State in Britain as well as 15 other Commonwealth Realms and is the Head of the 53-member state Commonwealth. But not only, that because on the 9th of September 2015, at about 5.30pm, Her Majesty Queen Elizabeth II also became Britain's longest reigning monarch ever, passing the record set by her great-great-grandmother Queen Victoria. It’s a feat now unlikely ever to be surpassed, but who else has she overtaken on the way? Since the Act of Union 1707 united England and Scotland to form Great Britain there have been 12 monarchs of the Kingdom – three women and nine men. Queen Elisabeth II has now reigned almost 64 years, Queen Victoria just over 63 years and George III, comes in 3rd place with 59 years as the leading king in the list.