Whose birth is celebrated by the annual holiday where Oranjegekte occurs?
Koningsdag Koningsdag (] ) or King's Day is a national holiday in the Kingdom of the Netherlands. Celebrated on 27 April (26 April if the 27th is a Sunday), the date marks the birth of King Willem-Alexander.
Devil's Birthday Devil's Birthday or Birthday of the Devil (Danish and Norwegian: "Fandens fødselsdag") is a historical term referring to 24 July (1997), 7 June (1959), and 29 January (1970).