Frederick IV (
October 11,
1671 -
October 12,
1730) king of
Denmark and
Norway from
1699. Son of Christian V, cousin to
Charles XII of Sweden and
Ulrike Eleonora of Sweden. He married
Louise of Mecklenburg-Güstrow on
December 5,
1695 and by her became father of five children, including Christian VI. Following her death on
March 15,
1721, he married his mistress
Anna Sophie Reventlow (on
April 4,
1721). Three children were born of this marriage. Frederick IV commanded the Danish troops at the
battle of Gadebusch 1712.
