Ingrid of Sweden (Ingrid Victoria Sofia Louisa Margareta; 28 March 1910 – 7 November 2000) was Queen of Denmark from 20 April 1947 to 14 January 1972 as the wife of King Frederik IX.
Ingrid was born into the House of Bernadotte as the only daughter of Crown Prince Gustaf Adolf of Sweden (later King Gustaf VI Adolf) and his first wife, Princess Margaret of Connaught. In 1935, she married Frederik, then Crown Prince of Denmark. The couple had three daughters: Margrethe, Benedikte, and Anne-Marie.
Margrethe II (Danish: [mɑˈkʁeˀtə]; Margrethe Alexandrine Þórhildur Ingrid, born 16 April 1940) is a member of the Danish royal family who reigned as Queen of Denmark from 14 January 1972 until her abdication on 14 January 2024. Having reigned for exactly 52 years, she was the second-longest-reigning Danish monarch after Christian IV.
Margrethe was born into the House of Glücksburg, a cadet branch of the House of Oldenburg, during the reign of her paternal grandfather, King Christian X. She is the eldest child of King Frederik IX and Queen Ingrid. She became heir presumptive to her father in 1953 when a constitutional amendment allowed women to inherit the throne. In 1967 she married Henri de Laborde de Monpezat, with whom she had two sons, Frederik and Joachim. Margrethe succeeded her father upon his death in January 1972.