A King-Broch to wear on Koningsdag. Koningsdag or King's Day is a national holiday in the Kingdom of the Netherlands. Celebrated on 27 April (the 26th if the 27th falls on a Sunday), the date marks the birth of King Willem-Alexander. Wikipedia: - http://en.wikipedia.org/wiki/Koningsdag - http://en.wikipedia.org/wiki/Willem-Alexander_of_the_Netherlands