Queen elizibeth
Elizabeth II has been on the throne since 6 February 1952, so when the question was asked on 11 May 2011, she had been on the throne for 59 years 94 days. As of today (9 September 2015) she has been on the throne for 63 years 219 days - the longest reign of any Monarch of the United Kingdom of Great Britain and Northern Ireland.
The house of Hanover in 1714, when George I came to the throne.
Prince Charles
George V
George V was on the throne at the first Commonwealth Games in 1930.
Britain or United Kingdom.
For them he was considered a usurper of the Bourbon throne.
Prince William
George VI, Edward VIII and George VI
Yes but not in a good way
Prince William
George V was the British monarch on the throne when the inaugural British Empire Games were held in 1930.