Queen Margrethe of Denmark hospitalised after fall at Fredensborg Castle

Queen Margrethe of Denmark has been hospitalised after a fall, the Danish royal household has confirmed.

The 84-year-old was taken to Copenhagen's largest public hospital, Rigshospitalet, where she remains after the accident at Fredensborg Castle on Wednesday evening (Thursday AEST).

"According to the circumstances, the queen is doing well, but is temporarily hospitalised for observation," palace communications told Danish news agency Ritzau.

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It's not known the nature of the fall, any injuries or how long the former monarch will be in hospital for, however, a planned engagement on Friday has been removed from the royal calendar.

Queen Margrethe II abdicated from the throne at the start of the year in a 900-year first, citing health concerns after undergoing major back surgery in 2023.

"In February this year I underwent extensive back surgery," she said in her New Year's address to the nation.

"Everything went well, thanks to the competent health personnel, who took care of me. Inevitably, the operation gave cause to thoughts about the future – whether now would be an appropriate time to pass on the responsibility to the next generation.

"I have decided that now is the right time."

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This paved the way for her eldest son to become King Frederik X and his Australian-born wife to become Queen Mary in a succession ceremony held just weeks after the announcement.

The January 14 changing of the guard marked exactly 52 years on the throne for Queen Margrethe, who was the longest-reigning monarch in Europe.

She was the second-longest serving monarch and the longest-reigning female monarch in Danish history.

Since stepping back from the top job, Queen Margrethe has continued to undertake a number of royal engagements, including two earlier this week.

Just hours before the fall, the 84-year-old attended the Sclerosis Conference ECTRIMS 2024 at the Bella Centre in Copenhagen, having been the royal patron of the Sclerosis Association since 1959.

And on Monday, Queen Margrethe presented the Rungstedlund Prize 2024 to Anja Cetti Andersen, the professor of astrophysics at the Niels Bohr Institute.

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