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- Queen Margrethe II of Denmark is abdicating the throne after 52 years.
- She is currently the longest-serving monarch in the world.
- Her eldest son, Prince Frederik, will succeed her as ruler.
Queen Margrethe II of Denmark announced her plans to abdicate the throne in her annual New Year's speech.
The crown will be passed to her eldest son, Crown Prince Frederik, on January 14, 2024.