Frederick IV holds a memorable place in the social history of the city of Venice for a visit he made during the winter of 1708–09. The king stayed in the city with an entourage of at least 70 people, formally incognito as Count of Oldenburg, not to be unknown, but to avoid the cumbersome and more costly etiquette of a royal visit.
Frederick VIII (Danish: Christian Frederik Vilhelm Carl; 3 June 1843 – 14 May 1912) was King of Denmark from 29 January 1906 until his death in 1912. The eldest son of King Christian IX , nicknamed the Father-in-law of Europe , Frederick was related to royalty throughout Europe.
Frederick III (Danish: Frederik; 18 March 1609 – 9 February 1670) was king of Denmark and Norway from 1648 until his death in 1670. He also governed under the name Frederick II as diocesan administrator (colloquially referred to as prince-bishop) of the Prince-Bishopric of Verden (1623–29 and again 1634–44), and the Prince-Archbishopric of Bremen (1635–45).
Frederick VII (Frederik Carl Christian; 6 October 1808 – 15 November 1863) was King of Denmark from 1848 to 1863. He was the last Danish monarch of the older Royal branch of the House of Oldenburg and the last king of Denmark to rule as an absolute monarch.
Frederick V (Danish and Norwegian: Frederik V; 31 March 1723 – 14 January 1766) was King of Denmark–Norway and Duke of Schleswig-Holstein from 6 August 1746 until his death in 1766. He was the son of Christian VI of Denmark and Sophie Magdalene of Brandenburg-Kulmbach .
Frederick IX (Danish: Christian Frederik Franz Michael Carl Valdemar Georg; 11 March 1899 – 14 January 1972) was King of Denmark from 1947 to 1972. Born into the House of Glücksburg , Frederick was the elder son of King Christian X and Queen Alexandrine of Denmark.
His son became Frederick IX of Denmark. His character has been described as authoritarian and he strongly stressed the importance of royal dignity and power. His reluctance to fully embrace democracy resulted in the Easter Crisis of 1920 , in which he dismissed the democratically elected Social Liberal cabinet with which he disagreed, and installed one of his own choosing.