Queen's Birthday

Etymology
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Proper noun

 * 1) A holiday or observance commemorating a female monarch and observing her birth, including:
 * 2)  the Queen's Official Birthday (observed on the Saturday falling between 11 and 17 June during the reign of Queen Elizabeth II (died 2022))
 * 3)  the Queen's actual birthday (21 April in the case of Queen Elizabeth II)
 * 4)  Victoria Day (last Monday before 25 May)
 * 5) Koninginnedag in the Netherlands