House of Glücksburg
The centre escutcheon, two red bars on a golden shield, represents the House of Oldenburg, the former royal dynasty that ruled Denmark and Norway from the middle of the fifteenth century. When the senior branch of this dynasty became extinct in 1863, the crown passed to Prince Christian of the cadet branch Glücksburg, whose descendants have reigned in Denmark ever since. The House of Glücksburg continues the use of the arms of the old Oldenburg dynasty, and the symbol is still officially referred to by its old association.