Till today, Oyo is the World's youngest reigning Monarch #TulumbeFort

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The accession of King Oyo to his father's throne marked the beginning of a challenging and exciting period for the people of Toro. At the infant age of three-and-one half years old, King Oyo of Toro earned a place in the Guinness Book of World Records as the youngest reigning monarch.

Being a minor, King Oyo was aptly placed under the guardianship of several capable individuals, to ensure his smooth maturation into his role as cultural leader of his people. Among his guardians are H.E. Yoweri Museveni, President of Uganda; Prince James Mugenyi, his paternal uncle, Princess Elizabeth N. Bagaaya, his paternal aunt and Godmother; and the other kings.

-Tooro Kingdom website