House of Glücksburg
In the Kingdom of Denmark all members of the ruling dynasty that hold the title Prince or Princess of Denmark are said to be members of the Danish Royal Family. As with other European monarchies, distinguishing who is a member of the national Royal Family is difficult due to lack of strict legal or formal definition of who is or is not a member. The Queen and her siblings belong to the House of Glücksburg, a branch of the House of Oldenburg. The Queen's children and male-line descendants belong agnatically to the family "de Laborde de Monpezat".