| Sovereign | Birthdate | Reign | Deathdate (if different) | ||
| Began | Ended | ||||
| Milan IV | 1854 | 1882 | 1889 | 1901 | (Prince of Serbia 1868) |
| Alexander | 1876 | 1889 | 1903 | ||
| Peter I | 1844 | 1903 | 1921 | (King of Serbs, Croats, & Slovenes 1918) | |
| Alexander I | 1888 | 1921 | 1934 | (King of Yugoslavia 1929) | |
| Peter II | 1923 | 1934 | 1945 | 1970 |
(from proclamation of the kingdom to absorption into Yugoslavia)
| Sovereign | Birthdate | Reign | Deathdate | ||
| Began | Ended | ||||
| Nikola I | 1841 | 1910 | 1918 | 1921 | (Prince of Montenegro 1860) |