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Frederick IX,1899–1972, king of Denmark (1947–72), son and successor of Christian XChristian X,
1870–1947, king of Denmark (1912–47) and Iceland (1912–44), son and successor of Frederick VIII and brother of King Haakon VII of Norway. He granted (1915) a new constitution that included the enfranchisement of women.
..... Click the link for more information. . He married (1935) Princess Ingrid of Sweden. Because he did not have a son the constitution was amended in 1953 to allow for a female heir to the throne; Frederick was succeeded by his daughter, Queen Margaret IIMargaret II
(Margrethe), 1940–, queen of Denmark (1972–). The oldest daughter of King Frederick IX and Queen Ingrid (the daughter of King Gustavus VI of Sweden), Princess Margrethe's right to the throne was established (1953) through a new constitution that allowed
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1899--1972, king of Denmark (1947--72)