Frederick Viii. (1843- ), king of Denmark, eldest son of King Christian IX., was born at Copenhagen on the 3rd of June 1843. As crown prince of Denmark he took part in the war of 1864 against Austria and Prussia, and subsequently assisted his father in the duties of government, becoming king on Christian’s death in January 1906. In 1869 Frederick married Louise (b. 1851), daughter of Charles XV., king of Sweden, by whom he had a family of four sons and four daughters. His eldest son Christian, crown prince of Denmark (b. 1870), was married in 1898 to Alexandrina (b. 1879), daughter of Frederick Francis III., grand-duke of Mecklenburg-Schwerin; and his second son, Charles (b. 1872), who married his cousin Maud, daughter of Edward VII. of Great Britain, became king of Norway as Haakon VII. in 1905.