He ascended to the throne following the abdication of his elder brother, Rukirabasaija Isingoma Rukidi II in 1875.
No mention is made about the marital life of Omukama Rububi Kyebambe II.
However, later that year, the Tooro Kingdom was invaded by the Bunyoro Army under the command of Chief Kikukule of Bugangaizi.
Omukama Rububi Kyebambe II deposed by his younger brother, Rukirabasaija Kakende Nyamuyonjo, in 1879, with the support of the Buganda Army.
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