King Oyo Nyimba Kabamba Iguru Rukidi IV of Uganda’s Tooro Kingdom has died aged 34, decades after becoming the world’s youngest reigning monarch at age three.
King Oyo Nyimba Kabamba Iguru Rukidi IV, the traditional ruler of Tooro in western Uganda, has died at 34, according to an announcement from the kingdom’s Prime Minister Calvin Armstrong Rwomiire Akiiki.
Akiiki described the death as an “immeasurable loss” and called on the people of Tooro to remain united, calm and prayerful.
Further details about funeral and mourning arrangements were expected to be announced separately. The cause of death has not been officially disclosed.

A Ugandan government minister was quoted in local media as saying Oyo had been critically ill and was receiving medical treatment in the United States.
Born on April 16, 1992, Oyo became Omukama, or king, of Tooro in 1995 after the death of his father, Patrick David Matthew Kavoyo Olimi III. He was only three years old.
A regency involving his mother, Queen Best Kemigisa Kaboyo, was established during his childhood. Oyo was formally crowned after turning 18, with President Yoweri Museveni attending his coming of age celebrations in 2010.
Guinness World Records continued to recognize him in 2025 as the world’s youngest reigning monarch.
Uganda’s Traditional Monarchies
Uganda is a republic governed by an elected president and parliament, but several traditional kingdoms retain important cultural and social roles.
Their political authority is limited, although their influence among local communities remains significant. Traditional monarchies were abolished after Uganda’s independence in 1962 and restored by Museveni in 1993.
Oyo supported causes including youth empowerment, education, HIV/AIDS awareness, environmental conservation and tourism.
In 2022, he undertook a hiking expedition in the Rwenzori Mountains to highlight tourism and climate change concerns.
Although Oyo was not officially married, Akiiki said the succession of the Crown is assured. The Prime Minister said a Prince had been left as heir, with his identity to be formally revealed in accordance with Tooro customs.
The Buganda Kingdom, Uganda’s largest and most influential traditional institution, expressed mourning for Tooro and described Oyo as a valuable figure to the country.
