The Father-in-Law of Europe, King Christian IX of Denmark
Christian IX was called 'the Father-in-Law of Europe' because his children married into thrones across the continent. Today his descendants sit on the thrones of Denmark, Norway, the United Kingdom and Spain, and King Charles descends from him on both his father's and his mother's side.
Reigning monarchs in this line
- King Haakon VIII Norway
- King Frederik X Denmark
- King Charles III United Kingdom
- King Felipe VI Spain
Everyone in the tree
- King Christian IX Denmark
- Queen Louise Denmark
- King Frederik VIII Denmark
- Queen Alexandra United Kingdom
- King George I Greece
- Empress Dagmar Russia
- King Christian X Denmark
- King Haakon VII Norway
- King George V United Kingdom
- King Constantine I Greece
- Tsar Nicholas II Russia
- King Frederik IX Denmark
- King Olav V Norway
- King George VI United Kingdom
- King Paul Greece
- Queen Margrethe II Denmark
- King Harald V Norway
- King Haakon VIII Norway
- Queen Elizabeth II United Kingdom
- Queen Sofía Spain
- King Frederik X Denmark
- King Charles III United Kingdom
- King Felipe VI Spain