Two years later, in 1907, King Mukaka died and was succeeded by his son Ruhumbika who encouraged Kitereza to leave Kagunguli in 1909 to pursue further schooling at the Rubya Roman Catholic Seminary in today's Kagera Region near the Ugandan border. Kitereza studied at the Rubya Seminary for ten years advancing to senior seminary and mastering Latin, the medium of instruction in Roman Catholic seminaries. He learned Greek, a requirement of the classical education of the seminary as well as German, the language of the colonial masters.