House of Oldenburg

The dynasty rose to prominence when Count Christian I of Oldenburg was elected King of Denmark in 1448, of Norway in 1450 and of Sweden in 1457.

After 576 years, the male line died out as the royal house of Denmark with the abdication of Queen Margrethe II in 2024.

Since descendants better situated in genealogical charts died out, their son Christian (the abovementioned) became the king of all three kingdoms of the whole Kalmar Union.

The House of Mecklenburg was its chief competitor regarding the Northern thrones, and other aspirants included the Duke of Lauenburg.

The House of Oldenburg was briefly poised to claim the British thrones through the marriage of Queen Anne and Prince George of Denmark and Norway in 1683; however, due to the early deaths of all their children, the crown passed to the House of Hanover, Oldenburgs not gaining that crown until 2022.

King Christian I and Queen Dorothy of Denmark started the royal dynasty in 1450 with the birth of their first child
2 rigsdaler – death of Frederik VII and accession of Christian IX marking the transfer of the throne to the Glucksburg branch of the House of Oldenburg [ 7 ]