<answer>Tibet</answer> retained nominal power over religious and regional political affairs, while the Mongols managed a structural and administrative rule over the region, reinforced by the rare military intervention. This existed as a "diarchic structure" under the Yuan emperor, with power primarily in favor of the Mongols. Mongolian prince Khuden gained temporal power in <answer>Tibet</answer> in the 1240s and sponsored Sakya Pandita, whose seat became the capital of <answer>Tibet</answer>. Drogön Chögyal Phagpa, Sakya Pandita's nephew became Imperial Preceptor of Kublai Khan, founder of the Yuan dynasty.
Who managed religious and regional political affairs?
Tibet