Love 'em or hate 'em, Europe's kings and queens have been at the centre of the continent's history and culture for over 1,300 years. In that time there's been some pretty weird and wonderful stuff happening behind the high walls of the castles and palaces that are still big tourist attractions today.
Reckon you've got knowledge worthy of a knighthood? Or are you more of a revolutionary thinker? Take our quiz and find out how much you know about Europe's royals...