What is the Danish Royal Familys last name?
The Danish Royal Familys last name is Schleswig-Holstein-Sonderburg-Glcksburg. Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glcksburg married Princess Luise Caroline of Hesse-Kassel, a granddaughter of King Frederik V of Denmark, in 1810. Christian, their fourth son, was chosen by the childless King Frederik VII of Denmark to be his heir. Christian acceded to the Danish throne as King Christian IX in 1863. The royal families of Norway and Greece also belong to the House of Schleswig-Holstein-Sonderburg-Glcksburg.