House of Glücksburg

House of Glücksburg
Parent houseHouse of Oldenburg
CountryDuchy of Schleswig
Duchy of Holstein
Kingdom of Denmark
Kingdom of Greece
Kingdom of Iceland
Kingdom of Norway
United Kingdom of Great Britain and Northern Ireland
Founded6 July 1825 (1825-07-06)
(17 December 1633 (1633-12-17) as Beck)
FounderFriedrich Wilhelm
(August Philipp as Beck)
Current headFriedrich Ferdinand, Prince of Schleswig-Holstein (heir of the last extant ducal branch of the House of Schleswig-Holstein-Sonderburg)
Titles
Connected families Mountbatten-Windsor
Cadet branches

The House of Schleswig-Holstein-Sonderburg-Glücksburg, also known by its short name as the House of Glücksburg, is the senior surviving branch of the German House of Oldenburg, one of Europe's oldest royal houses. Oldenburg house members have reigned at various times in Denmark, Norway, Sweden, Iceland, Greece, several northern German states, Russia and the United Kingdom. It takes its name from the family seat in Glücksburg, a small town in Schleswig-Holstein, Germany.

Current monarchs King Harald V of Norway and King Charles III of the United Kingdom, as well as the former Queen of Denmark Margrethe II and former queens consort Anne-Marie of Greece and Sofía of Spain, are patrilineal members of cadet branches of the House of Glücksburg.

The present senior member of the House of Oldenburg and the House of Glücksburg and traditional heir to the family's ancestral lands, including Glücksburg itself, is Friedrich Ferdinand, Prince of Schleswig-Holstein (born 1985), who heads the foundation that owns the family's ancestral seat, Glücksburg Castle.