Records of heads of state
Longest-reigning/serving
The longest current reigning female monarch is Elizabeth II, who is the Queen of the United Kingdom and other Commonwealth realms, and is a constitutional monarch. She has been Queen of the United Kingdom, Australia, Canada and New Zealand, since February 6, 1952, but all of the other countries she is at present queen of had yet to gain independence at the time of her accession.
Records of heads of state-7