Frederick IX was the king of Denmark from 1947 to 1972. He was one of the most popular monarchs in Danish royalty. He was the first in the royal family to have a career in the Danish navy and not in the army. He became the crown prince in 1912, when his father became the king. With his father’s death in April 1947, Frederick became the king. Throughout his tenure as a king, Frederick maintained a strong bond between the subjects and the royalty. He brought prosperity to the nation and empowered its women. His innovative policies made Denmark one of the most modern and progressive nations of the time. Frederick had three daughters from his wife, Princess Ingrid of Sweden. However, he had no sons. Thus, when the succession to his throne became doubtful, instead of making his younger brother the heir presumptive, he altered the 'Act of Succession' in Denmark and allowed the royal daughters to succeed to the throne. After Frederick's death in 1972, his eldest daughter succeeded him and began ruling as the queen of Denmark.
