Frederick IX of Denmark
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Frederick_IX_of_Denmark.jpg/200px-Frederick_IX_of_Denmark.jpg)
Frederick IX of Denmark (11 March 1899 - 14 January 1972) was King of Denmark from 20 April 1947 until his death on 14 January 1972. He was the son of King Christian X of Denmark and Queen Alexandrine, born Duchess of Mecklenburg. He was the fourth Danish monarch of the House of Glucksburg.