The youngest daughter of the late baron Thierry van Zuylen van Nijevelt turned 21 and decided to celebrate in one of the buildings of fairytale castle De Haar, in the Utrecht village of Haarzuilens. Things went awry when smoke machines were turned on to increase the festivity. Allegra didn’t intervene because she didn’t want to spoil the fun. Immediately the fire alarms of the castle went off.
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