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world's longest serving royals orig_00005717
world's longest serving royals orig_00005717

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    World's longest serving royals

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World's longest serving royals

Thailand's king Bhumibol Adulyadej marked his 70th year on the throne on Thursday, but who has reigned the longest overall? CNN's Max Foster reports.

World's longest serving royals

Thailand's king Bhumibol Adulyadej marked his 70th year on the throne on Thursday, but who has reigned the longest overall? CNN's Max Foster reports.