- Albert I, King of the Belgians, 1875-1934.1
- Attempted assassination.✖[remove]1
- Charles, Prince of Belgium, 1903-1983.1
- Kings and rulers--Belgium.1
- Maria José, Queen, consort of Humbert II, King of Italy, 1906-2001.1
- Umberto II, King of Italy, 1904-1983.1