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In page Constitutional monarchy:

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The present-day concept of a constitutional monarchy developed primarily in the United Kingdom, where a democratically elected parliament and the executive government formed from the ranks of the majority party, led by a prime minister, exercise true power while the monarch remains as a largely vestigial and constrained position (in the Commonwealth nations, the monarch is bound to take the advice of his or her government ministers, and has very limited 'reserve powers').[citation needed]