| YEAR | DATE | EVENT | KING | PRIME MINISTER | GOVERNOR |
| 1916 | may | Belgian Occupation | Gérard François Declerck | ||
| 1919 | january | Edouard van den Eende | |||
| 1922 | 20 july | Belgian Trust Territory | Mortehan | ||
| 1931 | 12 november | Mutara III Rudahigwa | |||
| 1932 | 19 february | Simon (I) | |||
| 1935 | 1 march | Hombert | |||
| 1935 | 1 october | Simon (II) | |||
| 1938 | 1 august | Gille | |||
| 1939 | 24 january | Simon (III) | |||
| 1940 | 9 september | Paradis (I) | |||
| 1942 | 15 april | Grauls (I) | |||
| 1942 | 1 july | Simon (IV) | |||
| 1942 | 21 september | Grauls (II) | |||
| 1943 | 15 april | Paradis (II) | |||
| 1943 | 1 november | Grauls (III) | |||
| 1943 | 1 december | Paradis (III) | |||
| 1944 | 24 january | Grauls (IV) | |||
| 1944 | 27 february | George Victor Sandrart (I) | |||
| 1945 | 31 march | Grauls (V) | |||
| 1945 | 4 august | George Victor Sandrart (II) | |||
| 1947 | 19 march | Vauthier | |||
| 1947 | 4 august | Dessaint (I) | |||
| 1948 | 28 january | George Victor Sandrart (III) | |||
| 1948 | 28 january | Dessaint (II) | |||
| 1958 | André Preud'homme | ||||
| 1959 | 25 july | Kigeri V Ndahindurwa | |||
| 1959 | 11 november | Guillaume Logiest | |||
| 1960 | 18 october | Belgian self-governing Trust Territory | Joseph Gitera | ||
| 1961 | 28 january | Rwandan Republic under Belgian rule | Dominique Mbonyumutwa | Grégoire Kayibanda | Guillaume Logiest |
| 1961 | 26 october | Grégoire Kayibanda |