In 1966, the political powers of the traditional leaders were abolished by the nationalist movement led by Milton Obote, who opposed the kings because of their collaboration with British colonial authorities alongside their potential to be divisive forces and thus a threat to the nascent republic.

Many of the leaders like the Kabaka Mutesa of Buganda and Omukama Patrick Kaboyo of Tooro were forced into exile to escape the regime of terror of Idi Amin.

According to oral history, Prince Olimi Kaboyo Kasunsunkwanzi, son of Rukirabasaija King of Bunyoro, annexed the southern part of his father's Kingdom in 1822 and founded what is known as Tooro today.

At 2 a.m. on 12 September 1995, a week after the late king's burial, the rituals to hand over the reins of power to Oyo Nyimba Kabamba Iguru began.

At 4 a.m, Oyo Nyimba Kabamba Iguru was crowned King amidst a jubilant crowd and entered the Karuziika palace ha Kyaro Nyamunyaka as the new ruler of the Kingdom of Tooro.

King Oyo Nyimba celebrates 27 years on the throne on Monday 12 Sep 2022 held at Kurizika Palace in Fort Portal, the coronation was attended by Prime Minister Steven Kiyingi and several royalties led by Prince Charles Kamurasi the Uncle to Oyo Omukama, The prayers were led by Religious leaders from Calvary Chapel , during the coronation the queen re-echoed that the king should find a suitable wife or helper who is fit for him as a King during the Coronation Kisembo Reuben congratulated Steven Kiyingi the newly appointed Tooro Kingdom Prime Minister and called out calm and peace among all people of Tooro Kingdom and in his philosophy he believes in dialogue and principle of negotiation for solutions to disagreements.

The late Colonel Muamar Gaddafi, the leader of Libya, was a patron of the Tooro Kingdom with close ties to the royal family.

The nine-year-old King Oyo named Gaddafi the "defender" of the kingdom and invited him to attend the sixth coronation anniversary celebrations in 2001.