Queen Margrethe II of Denmark unexpectedly announced her abdication during her annual New Year’s Eve address to the nation. This marks a historic moment for the Danish monarchy, as Margrethe II is the first Danish monarch in nearly 900 years to voluntarily step down from the throne.

The Queen’s decision, revealed during what otherwise seemed like a typical New Year’s Eve celebration in countless Danish homes, came as a surprise to the public. Her abdication will take effect on January 14, 2024, the 52nd anniversary of her accession to the throne.

Crown Prince Frederik will ascend to the throne following his mother’s abdication. There has been no stated reason for the Queen’s decision to abdicate, but she has reigned for over five decades and is currently the longest-serving head of state in Europe. The Danish royal family has not yet released any details.