The House of Schleswig-Holstein-Sonderburg-Glücksburg is a branch of the larger House of Schleswig-Holstein, which originated in the 12th century. This noble family emerged in the 16th century and is known for its connections to various European royal families. The Glücksburg line has produced several monarchs, including those of Denmark, Norway, and Greece. The family’s ancestral seat is Glücksburg Castle, located in northern Germany. The House played a significant role in the history of the region, particularly during the Schleswig Wars in the 19th century. Today, the family continues to hold a ceremonial role in various European countries.