Princess Catharina-Amalia, the eldest daughter of King Willem-Alexander and Queen Maxima of the Netherlands, has been hospitalized following a horseback-riding incident, the Dutch royal palace confirmed.

In a statement posted to the palace’s website on Tuesday, June 10, officials shared that the 21-year-old heir to the Dutch throne suffered a fall.

“The Princess of Orange broke her upper arm today after falling from her horse. She will undergo surgery at the UMC Utrecht,” an English translation of the statement read. “More information will follow as soon as it becomes clear what the possible consequences are for official obligations and other agreements.”

While the palace did not provide additional information, both Hello! and the Daily Express reported that Princess Amalia’s mother Queen Maxima left early from her engagement with the MIND Us Foundation at the Noordeinde Palace in The Hague on Tuesday.

The princess is a longtime equestrian, and the palace’s official website features photos of Princess Amalia riding her horse Mojito, and notes that she “enjoys horse riding, tennis and singing” in her free time.

Princess Amalia isn’t the only high-profile royal to suffer a horse-related incident in recent years. Princess Anne was hospitalized in June 2024 with a concussion thought to be caused by impact with a horse on her Gatcombe Park estate.

Anne, 74, said she could not remember “a single thing” about the incident one month after her hospitalization.

While reflecting on her injuries during a trip to South Africa earlier this year, the Princess Royal told the Press Association that the experience taught her “every day is a bonus,” per the BBC.

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“It just reminds you, shows you — you never quite know, something [happens] and you might not recover,” she said, adding, “You’re jolly lucky … if you can continue to be more or less compos mentis [of sound mind], and last summer I was very close to not being. Take each day as it comes, they say.”

She later made an emotional return to the hospital where she was treated after the incident, and thanked staffers who cared for her.

When she and her family take part in Trooping the Colour on Saturday, June 14, the Princess Royal is expected to ride on horseback alongside Prince William and Prince Edward.