Frederikke Dannemand was the royal mistress of which King?
Frederick VI of Denmark Frederick VI (Danish and Norwegian: "Frederik"; 28 January 17683 December 1839) was King of Denmark from 13 March 1808 to 3 December 1839 and King of Norway from 13 March 1808 to 7 February 1814. From 1784 until his accession, he served as regent during his father's mental illness and was referred to as the "Crown Prince Regent" ("kronprinsregent"). For his motto he chose "God and the just cause" (Danish: "Gud og den retfærdige sag" ) and since the time of his reign, succeeding Danish monarchs have also chosen mottos in the Danish language rather than the formerly customary Latin.
Juliana of the Netherlands Juliana (] ; Juliana Louise Emma Marie Wilhelmina; 30 April 1909 – 20 March 2004) was Queen of the Netherlands from 1948 until her abdication in 1980.