The Dutch royal family expressed regret on Wednesday for inviting 21 people to Princess Amalia's 18th birthday last week.
Under current COVID-19 rules, people in the Netherlands can receive a maximum of four guests over the age of 13 at home.
"The king informed me that after some thought it was not good to have organised (the party)," Dutch Prime Minister Mark Rutte explained in a letter to Parliament.
The birthday for the future Queen was held outside in a park belonging to the palace last
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