Margrethe II (Margrethe Alexandrine Þórhildur Ingrid, born 16 April 1940) is Queen of Denmark. Having reigned as Denmark's monarch for over 50 years, she is the world's only current queen regnant and the longest-serving current female head of state.

Born into the House of Glücksburg, a cadet branch of the House of Oldenburg, Margrethe is the eldest child of King Frederick IX and Queen Ingrid. She became heir presumptive to her father in 1953, when a constitutional amendment allowed women to inherit the throne. Margrethe succeeded her father upon his death on 14 January 1972. On her accession, she became the first female monarch of Denmark since Margrethe I, ruler of the Scandinavian kingdoms in 1376–1412 during the Kalmar Union. In 1967, she married Henri de Laborde de Monpezat, with whom she had two sons: Crown Prince Frederik and Prince Joachim.

Margrethe is known for her strong archaeological passion and has participated in several excavations, including in Italy, Egypt, Denmark and South America. She shared this interest with her grandfather Gustaf VI Adolf of Sweden, with whom she spent some time unearthing artefacts near Etruria in 1962.

As of 2023, Margrethe has, as sovereign, received 42 official state visits and she has undertaken 55 foreign state visits herself. She and the royal family have made several other foreign visits. Support for the monarchy in Denmark has been and remains consistently high at around 82%, as does Margrethe's personal popularity.

Princess Margrethe was born 16 April 1940 at Frederik VIII's Palace, in her parents' residence at the Amalienborg palace complex, the principal residence of the Danish royal family in the district of Frederiksstaden in central Copenhagen. She was the first child of the Crown Prince and Crown Princess (later King Frederick IX and Queen Ingrid). Her father was the elder son of the then-reigning King Christian X, while her mother was the only daughter of the Crown Prince of Sweden (later King Gustaf VI Adolf). Her birth took place just one week after Nazi Germany's invasion of Denmark on 9 April 1940.

Margrethe was baptised on 14 May in the Holmen Church in Copenhagen. The Princess's godparents were King Christian X (paternal grandfather); Hereditary Prince Knud (paternal uncle); Prince Axel (her paternal grandfather's first cousin); King Gustaf V of Sweden (maternal great-grandfather); Crown Prince Gustaf Adolf of Sweden (maternal grandfather); Prince Gustaf Adolf, Duke of Västerbotten (her maternal uncle); and Prince Arthur, Duke of Connaught and Strathearn (maternal great-grandfather).

She was named Margrethe after her late maternal grandmother, Margaret, Crown Princess of Sweden, Alexandrine after her paternal grandmother, Queen Alexandrine, and Ingrid after her mother. Since her paternal grandfather was also the King of Iceland, she was given the Icelandic name Þórhildur.

When Margrethe was four years old, in 1944, her younger sister Princess Benedikte was born. Princess Benedikte later married Prince Richard of Sayn-Wittgenstein-Berleburg and lives some of the time in Germany. Her second sister, Princess Anne-Marie, was born in 1946. Anne-Marie later married King Constantine II of the Hellenes and currently lives in Greece. ...

Source: Article "Margrethe II" from Wikipedia in English, licensed under CC-BY-SA 3.0.