List of longest reigning current monarchs
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List of currently enthroned monarchs and lifelong leaders sorted by length of service:
[edit] Current
Time served is in years as of 2006-11-26, rounded down. Note that this is not a list of the longest-serving heads of state; for example, although Malietoa Tanumafili II has been chief since 1939, he has only been head of state since Samoa's independence in 1962, and Emir Saqr bin Mohammad al-Qassimi is not head of a sovereign country.