Princess Ingeborg of Sweden, Denmark, and Norway was born on this day in 1878. The second daughter and fifth child of Crown Prince Frederick of Denmark and Princess Louise of Sweden, she was the nice of Empress Maria Feodorovna of Russia, Queen-Empress Alexandra of the United Kingdom, and King George I of Greece. In 1897, Princess Ingeborg married Prince Carl, Duke of Västergötland, a cousin. The couple had four children, including Queen Astrid of Belgium, Crown Princess Martha of Norway, and Princess Margaretha of Denmark. Princess Ingeborg was one of three people (her mother and eldest daughter being the other two) who were Princess of all three Scandinavian Kingdoms; Sweden, Denmark, and Norway, through birth or marriage. She served as one of the leading ladies of the Court after her marriage, due to Queen Sophia and Crown Princess Victoria preferring a private life. Princess Ingeborg was very popular for her dignity and friendliness, and they was known as the ‘happy family’ for their simple and harmonious family life. She is the grandmother and great-grandmother of King Harald V of Norway, King Philippe of Belgium, and Grand Duke Henri of Luxembourg. Princess Ingeborg remained one of the most active and most popular members of the family until she passed away in 1958.