| Reign | House | Country | Monarch | % Correct |
|---|---|---|---|---|
| 1903-1921 | Karadordevic | Serbia | Peter I | 83%
|
| 1934-1945 | Karadordevic | Yugoslavia | Peter II | 83%
|
| 1889-1903 | Obrenovich | Serbia | Alexander I | 74%
|
| 1921-1934 | Karadordevic | Yugoslavia | Alexander II | 74%
|
| 1882-1889 | Obrenovich | Serbia | Milan I | 64%
|