Joachim Holger Waldemar Christian, Prince of Denmark, Count of Monpezat, was born on 7 June 1969. His Royal Highness Prince Joachim is the son of HM Queen Margrethe II and HRH Prince Henrik of Denmark. He is included in the order of succession to the Throne and may act as Regent when HM The Queen and HRH Crown Prince Frederik are abroad.
HH Prince Nikolai William Alexander Frederik, born on 28 August 1999, HH Prince Felix Henrik Valdemar Christian, born on 22 July 2002, HH Prince Henrik Carl Joachim Alain, born on 4 May 2009, and HH Princess Athena Marguerite Françoise Marie born on 24 January 2012.
Prince Joachim shares custody of Prince Nikolai and Prince Felix with their mother, Alexandra Christina, Countess of Frederiksborg, who was formerly married to Prince Joachim.
Prince Joachim’s military education began in 1987 when he was a recruit in the Queen's Own Regiment. In 1988, Prince Joachim was appointed as a sergeant, and in 1989, he was appointed as a lieutenant of the reserve. After becoming a lieutenant, Prince Joachim served as a Platoon Commander of a tank squadron in the Prince's Own Regiment from 1989 to 1990.
In 1990, Prince Joachim was appointed a first lieutenant of the reserve and in 1992, after completion of advanced training level I for officers of the reserve (VUT I), came his appointment as a captain of the reserve. From 1996 to 2004, Prince Joachim was the commander of a tank squadron in the mobilization force of the Prince's Own Regiment and, from 2005, was attached to the Danish Division’s staff as a major of the reserve.
Following appointment as a lieutenant colonel of the reserve in 2011, Prince Joachim was designated as the chief of the Liaison Officers Group in Total Defence Region Fyn, Syd and Sønderjylland.