10 facts about Princess Josephine and Prince Vincent of Denmark as they celebrate their 4th birthday

January 08, 2015 - 15:50 GMT hellomagazine.com

Denmark's royal twins Prince Vincent and Princess Josephine celebrate turning four on 8 January. To honour Crown Prince Frederik and Crown Princess Mary's youngest children's special day, HELLO! Online presents ten facts about the pair.

CLICK ON PHOTO FOR FULL GALLERY OF FACTS

Princess Josephine and Prince Vincent in Greenland in 2014

Crown Princess Mary enjoys family outing at the zoo with Prince Vincent and Princess Josephine