Includes
- Charles IV
- Franz Joseph I of Austria
- King Albert I of Belgium
- King Albert II of Belgium
- King Carlos I of Portugal
- King Eduard VII.
- King Eduard VIII.
- King Frederick IX of Denmark
- King George V.
- King George VI
- King Gustaf V
- King Gustaf VI Adolf
- King Leopold I of Belgium
- King Leopold II of Belgium
- King Leopold III of Belgium
The monarch is the head of state. A monarch can either have only a representative role in a parliamentary monarchy, or in an absolute monarchy he can have absolute power in the country.